ANSI/BIFMA X5.5-2014
Desk/Table Products - Tests
American National Standard for Office
and Institutional Furnishings
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BSR/BIFMA X5.5-201X
American National Standard
Approval of an American National Standard requires verification by ANSI that the requirements for due
process, consensus, and other criteria have been met by the standards developer.
Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial
agreement has been reached by directly and materially affected interests. Substantial agreement
means much more than a simple majority, but not necessarily unanimity. Consensus requires that all
views and objections be considered, and that a concerted effort be made toward their resolution.
The use of American National Standards is completely voluntary; their existence does not in any
respect preclude anyone, whether he has approved the standard or not, from manufacturing,
marketing, purchasing, or using products, processes, or procedures not conforming to the standard.
The American National Standards Institute does not develop standards and will in no circumstances
give an interpretation of any American National Standard. Moreover, no person shall have the right or
authority to issue an interpretation of an American National Standard in the name of the American
National Standards Institute. Requests for interpretations should be addressed to the secretariat or
sponsor whose name appears on the title page of this standard.
CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The
procedures of the American National Standards Institute require that action be taken periodically to
reaffirm, revise, or withdraw this standard. Parties interested in American National Standards may
receive current information on all standards by calling or writing the American National Standards
Institute.
Published by BIFMA
Copyright © 2014
All rights reserved
No part of this publication may be reproduced in any form, in an electronic retrieval system or
otherwise, without prior written permission by the publisher.
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ANSI/BIFMA X5.5-2014
American National Standard for Office
and Institutional Furnishings
Desk/Table Products - Tests
Sponsor
BIFMA
678 Front Ave. NW, Suite 150
Grand Rapids, MI 49504-5368
Phone: (616) 285-3963
email@bifma.org
www.bifma.org
Approved February 26, 2014
American National Standards Institute
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ANSI/BIFMA X5.5-2014
FOREWORD
The material presented in this standard was developed as a result of the efforts of BIFMA
members and reviewed by a broad representation of interested parties including government
organizations, commercial testing
laboratories, and
procurement and
interior design
organizations.
This standard defines specific tests, laboratory equipment, conditions of test, and recommended
minimum levels to be used in the test and evaluation of the performance, durability, and
structural adequacy of desk/table products used in offices, schools and other institutional
environments.
The original work on this standard was completed in 1980 by the BIFMA Engineering
Committee and particularly by its Subcommittee on Desk/Table Standards. The Subcommittee
on Desk/Table Standards conducts routine reviews of the standard to ensure that the tests
accurately describe the proper means of evaluating the safety, durability, and structural
adequacy of desk/table products.
The reviews produced revisions and/or additions to the
various test procedures that improve the procedures and provide consistency. This standard
was revised and approved by ANSI in 1983, 1989, 1998, and in 2008. The current revisions
were begun by the Desk/Table Subcommittee on March 8, 2012 and submitted to the
membership of BIFMA and approved in March of 2013. A canvass of interested parties and
stakeholders was conducted in accordance with the requirements of an ANSI accredited
standards developer. After completion of the canvass process, the standard was subsequently
submitted to the American National Standards Institute for approval as an American National
Standard. Approval by ANSI was given on February 26, 2014.
Suggestions for the improvement of this standard are welcome. The suggestions should be
sent to BIFMA, 678 Front Ave. NW, Suite 150, Grand Rapids, MI 49504.
2
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ANSI/BIFMA X5.5-2014
Contents
Page
1
Scope ...................................................................................................................................... 8
2
Definitions ............................................................................................................................... 9
3
General ................................................................................................................................. 15
3.1 Testing Considerations ................................................................................................... 15
3.2 Manufacturer’s Instructions ............................................................................................. 17
3.3 Clearance Between Adjusting Primary and Secondary Surfaces ................................... 17
3.4 Figures ............................................................................................................................ 17
3.5 Figure Symbols ............................................................................................................... 17
3.6 Tolerances ...................................................................................................................... 17
3.7 Pretest Inspection ........................................................................................................... 18
3.8 Test Report Format ......................................................................................................... 18
3.9 Loading Guidelines ......................................................................................................... 21
3.10 Temperature and Humidity Considerations .................................................................. 23
3.11 Cycle Rates ................................................................................................................... 23
3.12 Glass Surfaces.............................................................................................................. 23
4
Stability Tests ........................................................................................................................ 28
4.2 Stability with Extendible Elements Open Test ................................................................ 28
4.3 Stability Under Vertical Load Test ................................................................................... 29
4.4 Horizontal Stability Test for Desks/Tables with Casters ................................................. 30
4.5 Stability Test for Keyboard/Laptop Tables (with and without casters) ............................ 32
4.6 Force Stability Test for Tall Desk/Table Products ........................................................... 33
5
Unit Strength Test ................................................................................................................. 37
5.2 Concentrated Functional Load Test ................................................................................ 37
5.3 Distributed Functional Load Test .................................................................................... 42
5.4 Concentrated Proof Load Test ........................................................................................ 42
5.5 Distributed Proof Load Test ............................................................................................ 43
5.6 Transaction Surface Torsion Load Test .......................................................................... 44
5.7 Extendible Element Static Load Test .............................................................................. 45
5.8 Benching Systems – Distributed Functional Load and Stability Test .............................. 46
5.9 Benching Systems – Distributed Proof Load Test .......................................................... 47
6
Top Load Ease Cycle Test.................................................................................................... 49
7
Desk/Table Unit Drop Test.................................................................................................... 51
8
Leg Strength Test ................................................................................................................. 56
9
Separation Tests for Tall Desk/Table Products .................................................................... 59
10 Extendible Element Cycle Test ............................................................................................. 62
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ANSI/BIFMA X5.5-2014
10.2 Cycle Test for Extendible Elements Deeper than Wide ................................................ 62
10.3 Cycle Test for Extendible Elements Wider than Deep .................................................. 63
10.4 Cycle Test for Low height drawers................................................................................ 66
11 Extendible Element Retention Impact and Durability (Out Stop) Tests ................................ 68
12 Extendible Element Rebound Test ....................................................................................... 71
13 Interlock Strength Test .......................................................................................................... 73
14 Lock Tests ............................................................................................................................. 75
14.2 Force Test for Extendible Element Locks ..................................................................... 75
14.3 Force Test for Door Locks ............................................................................................ 76
14.4 Locking Mechanism Cycle Test .................................................................................... 78
15 Work Surface Vertical Adjustment Test ................................................................................ 80
16 Keyboard Support and Input Device Support Adjustment Tests........................................... 85
17 Door Tests ............................................................................................................................ 86
17.2 Strength Test for Vertically-Hinged Doors, Bi-fold Doors, and Vertically Receding
Doors............................................................................................................................ 87
17.3 Hinge Override Test for Vertically-Hinged Doors .......................................................... 89
17.4 Vertically Receding Doors Strength Test ...................................................................... 90
17.5 Horizontal Receding Doors Strength Test .................................................................... 91
17.6 Wear and Fatigue Test for Hinged, Horizontal Sliding, and Tambour Doors ................ 94
17.7 Wear and Fatigue Test for Vertical Receding Doors .................................................... 97
17.8 Wear and Fatigue Test for Horizontal Receding Doors ................................................ 99
17.9 Vertical and Horizontal Receding Door Out Stop Test – Cyclic Impact and Durability 101
17.10 Slam Closed Test for Vertically Hinged and Vertically Receding Doors ................... 103
17.11 Drop Cycle Test for Horizontally Hinged and Horizontally Receding Doors ............. 104
17.12 Slam Test for Doors that Free Fall Open or Closed.................................................. 105
17.13 Slam Open and Closed Test for Doors That Do Not Free Fall ................................. 106
17.14 Door Latch Test ........................................................................................................ 107
18 Durability Test for Desks and Tables with Casters ............................................................. 109
19 Pull Force Test .................................................................................................................... 111
20 Tilting Top Table – Cycle Test ............................................................................................ 114
21 Tilting Top Table – Latch Strength Test .............................................................................. 116
22 Monitor Arm Strength Test ................................................................................................. 117
23 Monitor Arm Cyclic Test ..................................................................................................... 122
24 Monitor Arm Dislodgement Test ........................................................................................ 125
Appendix A – Impact Test Bag – Construction ......................................................................... 126
Appendix B – Guidance for Stability of Desk/Table Mounted Monitor Arms ............................. 133
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ANSI/BIFMA X5.5-2014
Tables
1
Test Loads - All Categories of Horizontal Surfaces and Extendible Elements ..................... 24
2
Attachment Location for Pull Type ........................................................................................ 25
3
Drop Height for Desk/Table Units ......................................................................................... 50
4
Cycle Test for Extendible Elements Wider Than Deep ......................................................... 64
5
Door Test Applicability .......................................................................................................... 86
6
Door Height vs. Load ............................................................................................................ 87
7
Wear and Fatigue Tests for Doors ........................................................................................ 95
8
Desk/Table Movement Cycle Test Parameters .................................................................. 109
Figures
3
Loading Configurations for Extendible Elements
3a Loading Configurations for Ext. Element (Deeper than Wide) with Bottoms .................. 19
3b Loading Configurations for Ext. Element (Wider than Deep) with Bottoms .................... 19
3c Loading Configurations for Ext. Element (Deeper than Wide) without Bottoms ............. 20
3d Loading Configurations for Ext. Element (Wider than Deep) without Bottoms ............... 21
4
Stability Tests
4a Stability with Extendible Elements Open ........................................................................ 26
4b Stability Under Vertical Load ........................................................................................... 26
4c Stability Loading for Irregular Shaped Tables ................................................................. 27
4d Horizontal Stability Test for Units with or without Casters .............................................. 30
4e Force Stability Test for Tall Desk/Table Products ........................................................... 33
5
Unit Strength Tests
5a Concentrated Load Tests for Primary Surfaces .............................................................. 35
5b Top View of Placement of Concentrated Load(s) ........................................................... 35
5c Top View of Ganged Units Surface Size Determination ................................................. 36
5d Top View of Dual Concentrated Load Tests ................................................................... 36
5e Distributed Load Tests for Primary Surfaces .................................................................. 39
5f Distributed Load Tests for Secondary Surfaces ............................................................. 39
5g Top View of Distributed Load Tests for Primary Surfaces .............................................. 40
5h Distributed Load Tests for Adjustable Keyboard Supports ............................................. 41
5i Transaction Surface Torsion Load Test .......................................................................... 44
5j Top View of Distributed Load Test for Benching Systems .............................................. 46
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ANSI/BIFMA X5.5-2014
6
Top Load Ease Cycle Test.................................................................................................... 48
7
Desk/Table Unit Drop Test.................................................................................................... 50
8
Leg Strength Test - Typical Configurations/Load Application .......................................... 52-55
9
Separation Test for Tall Desk/Table Products ...................................................................... 58
10 Extendible Element Cycle Test ............................................................................................. 61
11 Extendible Element Retention Impact and Durability Test
11a Extendible Element Retention Impact Test .................................................................. 67
11b Extendible Element Retention Durability Test .............................................................. 67
12 Extendible Element Rebound Test ....................................................................................... 70
13 Interlock Strength Test .......................................................................................................... 72
14 Lock Test
14a Force Test for Extendible Element Locks ...................................................................... 74
14b Force Test for Door Locks ............................................................................................. 76
14c Locking Mechanism Cycle Test ..................................................................................... 77
15 Work Surface Vertical Adjustment Tests
15a Work Surface Vertical Adjustment Test for Motor or Crank Driven Surfaces ............... 79
15b Work Surface Vertical Adjustment Test for Counterbalancing Surfaces........................ 81
16 Keyboard Support and Input Device Support Adjustment Tests........................................... 84
17 Door Tests
17a Strength Test for Vertically Hinged Doors, Bi-fold Doors, and Vertically Receding
Doors............................................................................................................................ 87
17b Hinge Override Test for Vertically Hinged Doors ........................................................... 88
17c Vertically Receding Doors Strength Test ....................................................................... 89
17d Horizontal Receding Doors Strength Test ..................................................................... 91
17e Wear and Fatigue Test for Hinged, Horizontal Sliding, and Tambour Doors ............ 93-94
17f Wear and Fatigue Test for Vertical Receding Doors ...................................................... 96
17g Wear and Fatigue Test for Horizontal Receding Doors ................................................. 98
17h Receding Door Out Stop Test – Cyclic Impact ............................................................ 100
17i Receding Door Out Stop Test – Cyclic Durability ......................................................... 100
17j Slam Closed Test for Vertically Hinged and Vertically Receding Doors ....................... 102
17k Drop Cycle Test for Horizontally Hinged and Horizontally Receding Doors ................ 104
17L Slam Test for Doors Which Free Fall Open or Closed................................................. 105
17m Slam Open and Closed Test for Doors That Do Not Free Fall ................................... 106
18 Durability Test for Desks and Tables with Casters ............................................................. 108
19 Pull Force Test .................................................................................................................... 111
20 Tilting Top Table Top Cycle Test ........................................................................................ 113
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ANSI/BIFMA X5.5-2014
21 Tilting Top Table – Latch Strength Test .............................................................................. 115
22 Monitor Arm Strength Test .................................................................................................. 117
23 Monitor Arm Cycle Tests
23a Monitor Arm – Cycle Test Rotational Movement at Base ............................................ 119
23b Monitor Arm – Cycle Test Rotational Movement at Linkage/Knuckle .......................... 120
23c Monitor Arm – Cycle Test Vertical (Up/Down) ............................................................. 121
23d Monitor Arm – Cycle Horizontal ................................................................................... 121
24 Monitor Arm Dislodgement Test .......................................................................................... 124
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ANSI/BIFMA X5.5-2014
American National Standard
for Office and Institutional Furnishings
Desk/Table Products - Tests
1
Scope
This standard provides a common basis for evaluating the safety, durability and structural
performance of desk/table products intended for use in commercial office and related
institutional environments such as educational environments.
It provides test methods and
performance requirements for desk/table products. Where a product may be covered by more
than one ANSI/BIFMA standard, the manufacturer shall determine which standard provides the
most appropriate test conditions. Where a product is intended for use outside of the commercial
office and related institutional environments, it is the responsibility of the user of this standard to
determine if it is suitable for use in such evaluations.
Note: Commercial product naming conventions may cause confusion regarding the applicability
of this and other BIFMA standards. For example, a “credenza” is typically defined and tested in
the BIFMA X5.5 Desk standard, however, some configurations of “credenzas” will appear to be
storage products within the definition of this standard and may be appropriately tested by X5.9
Storage Units - Tests standard. The manufacturer shall determine which standard provides the
most appropriate test conditions.
This standard specifies acceptance levels to help ensure reasonable safety and performance
independent of construction materials, manufacturing processes, mechanical designs, or
aesthetic designs. These tests are not intended to assess a product that has been in use. The
acceptance levels herein are based on the actual field and test experience of BIFMA members.
The tests were developed with an estimated product life of ten years based on a single-shift
usage. Product life will be affected by product use, care and maintenance, environment, and
other factors.
Product compliance to this standard does not necessarily guarantee a ten-year
product life. Products may perform longer than ten years with appropriate use and care.
ISO 17025 requirements for reporting uncertainty do not apply when determining conformance
to this standard.
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ANSI/BIFMA X5.5-2014
2
Definitions
Note: Refer to BIFMA PD-1 Industry Product Definitions for related terms not included
in this standard. Otherwise, the common dictionary definition shall be used for terms not
defined in this section or in BIFMA PD-1.
In the case of a conflict between the
definitions in this standard and PD-1, the definitions in this standard shall apply.
2.1
acceptance level: The performance level required to pass the test.
2.2
adjustable glides: Support devices for leveling and/or stabilizing a desk/table product.
(Alternately referred to as "glides," "levelers," "adjustable supports," or "height adjusters").
2.3
anti-rebound: The feature that ensures that an extendible element will stay closed and
will not roll or bounce out of the compartment.
2.4
benching systems: A series of primary surfaces interconnected longitudinally to a length
greater than 72 in. by an integrated/shared support structure to extend the span of the
overall surface.
Benching systems are designed to be a primary workstation for
simultaneous use by multiple users and may also have desk extension surfaces. While
benching systems may be used as conference tables, those products are subject to
different usage and should be tested as stand-alone tables. Stand-alone desks or tables
placed end-to-end, even if ganged (physically connected), are not benching systems; they
are considered to be individual desks/tables. (Benching systems may have some overlap
with other standards such as ANSI/BIFMA X5.6 Panel Systems. The manufacturer shall
determine which standard provides the most appropriate test conditions.)
2.5
categories of desks or tables:
2.5.1
category I:
Desks or tables with surfaces greater than 610 mm (24 inches) in
height and have a total work surface area greater than 0.46 m2 (5 ft.2).
2.5.2
category II:
Desks or tables with surfaces which are always less than or equal to
610 mm (24 inches) in height.
2.5.3
category III: Desks or tables with surfaces greater than 610 mm (24 inches) in
height and have a total work surface area less than or equal to 0.46 m2 (5 ft.2).
Note: The highest position of adjustable work surfaces is used to define the category. If a
desk or table has multiple surfaces, its highest primary surface shall be used to define its
category. Keyboard/laptop tables are not considered category lll tables (See definition for
2.6
surface classifications -- keyboard/laptop tables).
clear dimensions: The clear dimensions of the extendible element or desk/table
component are defined by the sides of the largest rectilinear box (with specific height
limitations as noted in 2.6.2 below) that fits into the space. For extendible elements, the
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ANSI/BIFMA X5.5-2014
box must clear all stationary elements as the extendible element is taken through its full
range of travel. These dimensions are used to calculate extendible element test loads.
2.6.1 clear depth: The horizontal dimension of the box (as defined in 2.6) in the
direction of travel. The clear depth is not reduced by the presence of a compressor.
2.6.2 clear height: The vertical dimension of the box (as defined in 2.6).
Exceptions:
• In the case where there is no bottom for the extendible element, the maximum
clear height value used for the clear space calculation shall not exceed 305 mm
(12 in.).
• In the case where there is a unit bottom the maximum clear height value used for
the clear space calculation shall not exceed 457 mm (18 in.).
• For shelves that extend, the maximum clear height value used for the clear space
calculation shall not exceed 305 mm (12 in.).
2.6.3 clear width: The horizontal dimension of the box (as defined in 2.6) at right angles
to direction of travel.
2.7
clear space: The volume defined by the product of the clear dimensions.
For example: clear space = (clear depth) x (clear width) x (clear height). Note exceptions
in 2.6.2.
2.8
compartments: The areas into which the unit is divided.
2.9
compressor: A device used to restrict the movement of the filed material.
2.10
counterbalanced adjustment surfaces: surfaces that are supported by height
adjustment mechanisms that contain counterbalancing devices to support a load while
adjusting the surface. Such mechanisms may include springs, weights, and/or pneumatic
or hydraulic cylinders. These mechanisms may contain fixed-force or adjustable-force
type devices.
2.11
credenza: A unit with desk pedestals, generally 457 mm to 610 mm (18 in. to 24 in.)
deep, used in combination with a desk unit for additional storage. Credenzas tested per
this standard will typically have a knee space included in the design. Note: Commercial
product naming conventions may cause confusion regarding the applicability of this and
other BIFMA standards. For example, a “credenza” is typically defined and tested
according to this standard, however, some configurations of “credenzas” will appear to be
storage products and may be appropriately tested by the X5.9 standard. The manufacturer
shall determine which standard provides most appropriate test conditions.
2.12
cycle: A complete operation of loading and unloading or of stress reversal; to open and
close; one complete revolution; to operate in a cyclic fashion.
2.13
depth: The horizontal dimension from front to rear. This may be applied to either the unit
or to the extendible elements, so it shall be specifically identified and described.
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ANSI/BIFMA X5.5-2014
2.14
desk: An article of furniture having a primary work surface that is between 660 mm (26
in.) and 965 mm (38 in.) high and is supported by legs and/or storage component(s) with
or without extendible element(s) and with a knee space.
2.15
desk extension: A unit that is generally attached to a desk to create a work surface that
extends from the desk workstation. (Also known as an "extended desk unit").
2.16
desk/table product: Freestanding furniture articles including but not limited to, single and
double pedestal desks, extended desk units, credenzas, and tables. Also included are
items such as overhead storage units, hutches, screens, etc., that are either attached to,
placed on or supported by the desk/table unit.
Accessory items such as paper
management products (horizontal, vertical and diagonal paper trays), hanging rail bars,
small storage bins and other similar items (telephone trays, pencil holders and paper clip
2.17
2.18
holders, etc.) are not considered desk/table products and are not included in this standard.
disengaged/disengagement: To release from an attachment or connection. For use
within this standard, a product is considered disengaged if the mechanism used to position
or retain a unit is not active or functioning after performing the test. For products held in
place by gravity, products are not considered disengaged if they have returned to a
properly installed position after performing the test.
door: A barrier by which an area is closed or opened. Types include: horizontal receding,
vertical receding, tambour, sliding, vertical swinging, horizontal swinging, bi-fold,
accordion, and others.
2.19
extendible element:
A movable load bearing storage component, including, but not
limited to: drawers, shelves, and filing frames. This excludes doors, writing shelves, and
adjustable keyboard supports.
2.20
force: A vector quantity, expressed in newton (N) or pounds-force (lbf.) that tends to
produce an acceleration of a body in the direction of its application.
2.21
fully extended: The extendible element pulled out to the limit of its stops.
2.22
functional load: A level of loading intended to be typical of hard use.
2.23
ganged units: Two or more units fastened together.
2.24
hutch: A non-freestanding storage unit that is mounted on a primary work surface(s).
Also known as service modules, shelving units, risers, overhead storage units, etc.
2.25
input device support: A surface that is occupied exclusively by computer input devices
such as computer mice, trackballs, and light pens.
2.26
instruction document: Information supplied by a manufacturer for use by the designer
and/or end user and his installation representative that list recommendations, limitations
and restrictions on the assembly, configuration, loading and use of the products.
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ANSI/BIFMA X5.5-2014
2.27
interlock:
A device that limits the extension of one or more extendible elements to
maintain stability of the unit.
2.28
lbf.:
Abbreviation for pounds-force.
The corresponding unit in the SI (Système
International), also known as the Metric System, is the newton (N).
2.29
leg: A support member of a desk, credenza, or table.
2.30
length: The measure of something along its greatest horizontal dimension. This may be
applied to either the unit or to the extendible elements, so it shall be specifically identified
and described.
2.31
leveled: A condition where the desk/table product, when installed, adopts and maintains
a true horizontal and vertical attitude. Leveling may be accomplished by, but not limited
to, the use of adjustable glides or shimming.
2.32
load: An applied weight or force.
2.33
lock: A device that secures the stationary and extendible elements of the desk/table unit
against undesired access or opening.
2.34
loss of serviceability: The failure of any product to carry its intended load or to perform
its normal function or adjustment. Unless otherwise specified, cracked or broken glass is
2.35
2.36
2.37
considered a loss of serviceability.
low height drawer: A drawer, with a clear height less than 76 mm (3 in.) which is
primarily intended for the storage of light office supplies (such as pencils, pens, erasers,
staples, etc.).
monitor arm: A device used to support computer monitors, typically flat screen displays.
Monitor arms typically have movement and/or adjustment in vertical, horizontal and/or
tilting of the display.
N (newton): A unit of force in the SI (Système International), also known as the Metric
System.
2.38
out stops: A device that limits the travel of the extendible element in a direction away
from the unit.
2.39
pedestal, desk component: A self-contained unit with a depth equal to or greater than
its width, and having extendible elements or doors. The extendible elements are typically
used for multi-functional general storage or filing. For the purpose of this standard,
pedestals pertain only to those items mounted under a horizontal surface or those used for
support of the primary surface. Freestanding pedestals are tested to ANSI/BIFMA X5.9.
2.40
product safety label: A sign, label, cord-tag or decal affixed to the product that provides
safety information about that product. Product safety signs or labels may identify the
hazard, the degree or level of seriousness, the probable consequences of involvement
with the hazard, and how the hazard can be avoided.
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ANSI/BIFMA X5.5-2014
2.41
proof load: A level of loading or force in excess of hard use.
2.42
pull: A feature used to facilitate the opening and closing of an extendible element or door.
Pull refers to both projecting and recessed features.
2.43
receding door: A compartment closure that pivots to allow access to the compartment,
then moves to a storage position parallel to the surface (top, bottom or side).
2.44
screen: Non-load-carrying space divider that is less than ceiling height.
2.45
stability: The ability of a unit to resist tipping under normal loading and use conditions.
2.46
stops: Devices that limit travel of extendible elements or doors.
2.47
support element: A part of the unit or table that keeps the unit elevated above the floor.
2.48
surface classifications:
2.48.1 adjustable keyboard support surface: An adjustable surface that is attached to
a primary surface and is intended for placement of the keyboard, and/or other computer
input devices.
2.48.2 display shelf: A shelf with a sloping surface and retaining flange or edge.
2.48.3 door shelf: A shelf attached to a door. A display shelf that functions as a door is
also considered a door shelf.
2.48.4: keyboard/laptop table: A table with a surface that may or may not be adjustable
that is intended for placement of a keyboard, laptop, and/or other computer input devices.
Depth shall be less than or equal to 457 mm (18 in.), length shall be less than or equal to
914 mm (36 in.) and overall area less than or equal to 0.37 sq. meters (4 sq. ft.).
2.48.5 primary surface: A surface that has the apparent potential for the highest loading
or a surface on which a person may sit (less than 965 mm [38 in.] high). In cases where
more than one horizontal surface of a unit exists, there may be more than one primary
surface.
2.48.6 secondary surface: A surface that is vertically separated from and smaller than
the primary work surface(s). It is used for storage (that is, a shelf) or occupied exclusively
by the equipment placed on the surface.
Note: If it is unclear whether a surface is primary or secondary, the surface shall be
considered primary.
2.48.7 transaction surface: A surface that may be vertically separated from and smaller
than the primary work surface(s).
It is used for short-term placement of documents,
packages and similar items being immediately transferred between users, and/or for
placement of lightweight displays and decorative items. It is typically accessible in the
user position and the approach position simultaneously.
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2.48.8 writing shelf: A moveable, typically stowable surface that is not intended to carry
loads greater than defined in Table 1, whose primary function is to support ancillary office
tasks, such as writing and short-term reference material handling.
2.49
suspension:
The system that is used to facilitate the movement of the extendible
element in and out of the unit (alternately referred to as "slides").
2.50
table: A freestanding unit having a work surface supported by legs. Attached storage is
limited to low height drawers.
2.51
tall desk/table product: Any desk/table unit that is higher than 1067 mm (42 in.) tall.
2.52
test platform: The horizontal hard work surface, (concrete or other unyielding surface) on
which the unit to be tested is placed during testing.
2.53
tilt-top table: A table whose top moves from its normal use position, to a position that
allows nesting or more efficient storage.
2.54
tip over: The condition where the unrestricted unit will not return to its normal upright
position.
2.55
unit: When used in the test procedures in this standard, unit refers to the product to be
tested.
In the case where individual components can be combined, the combined
assembly shall be considered a unit.
In the case of benching systems, the entire
assembled system is considered a unit for testing purposes.
2.56
unit height: The vertical distance of a unit from the floor or test platform to its highest
point. The height measurement is taken with adjustable glides at the midpoint of their
adjustment but not to exceed 13 mm (0.5 in.).
2.57
unsupported span: The distance between adjacent floor supports. Pedestals or other
structures not extending to the floor do not affect this distance.
2.58
user adjustable: A product/item that is intended to be used by single or multiple users to
make adjustments for comfort or operation during or between shifts. Adjustments that
require the use of separate tools or those adjustments that are made upon initial setup/installation of monitor arms are not considered user-adjustable.
2.59
width: A horizontal dimension from side to side. This may be applied to either the desk
product or to the extendible elements, so it shall be identified and described.
2.60
working edge: The side of the surface at which the primary user sits.
Note: some surfaces may have more than one working edge; conference tables for
example.
2.61
worst-case condition: The condition (i.e. size and construction of a given unit type) most
likely to be adversely affected by the test.
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ANSI/BIFMA X5.5-2014
3
General
3.1
Testing Considerations
3.1.1
The testing and evaluation of a product in accordance with this standard may require the
use of materials and/or equipment that could be hazardous. This document does not purport to
address all the safety aspects associated with the use of those materials and/or equipment.
Anyone using this standard has the responsibility to consult the appropriate authorities and to
establish health/safety practices and any applicable regulatory requirements prior to the use of
the materials or equipment described.
3.1.2
3.1.3
The types of tests to be employed fall into the following general categories:
a)
static load applications
b)
dynamic load applications
c)
durability/cyclic tests
d)
stability tests
Two types of load levels are used:
a) Functional loads are generally used to evaluate the durability/longevity of the products
under hard use and typically define acceptable performance in terms of continuing
serviceability.
b) Proof loads are generally used to evaluate the performance of the product in excess
of hard use and typically define acceptable performance in terms of structural integrity.
3.1.4
Each manufacturer’s model or unit type in any configuration (allowed by the
manufacturers planning guide) shall comply with applicable requirements when tested in
accordance with this voluntary standard. Only worst-case product, condition, and/or furniture
configurations
(including height adjustment capability) need to be tested.
A worst-case
product/condition/configuration shall be representative of all models or units of the type tested.
If “worst-case condition” is not readily evident, a case-by-case product line analysis by the
manufacturer in consultation with the designated testing facility may be necessary, taking into
consideration any special attributes, methods of construction, materials, and/or design features,
etc. Instruction documents and other literature provided by the manufacturer will be helpful in
determining which products and/or product configurations that are implicitly or explicitly
recommended by the manufacturer when determining compliance; it is expected that any and all
configurations recommended by the manufacturer will be able to meet the acceptance levels of
the tests in this standard. Note: More than one product may have to be tested for different tests
to cover a product from a worst-case condition standpoint.
Consider, for example a
manufacturer that offers a variety of wall-hung cabinets up to 1829 mm (72 inches) in
length. Testing the 1829 mm (72-inch) unit might be the worst case from a unit loading
standpoint while testing a 1219 mm (48-inch) unit for related tests might have to be done
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ANSI/BIFMA X5.5-2014
because that size unit may contain the longest (worst case) single door; testing the 762 mm (30inch) long unit may be needed for the Separation and Disengagement tests as the lightest
weight product may be the worst case condition for these tests.
3.1.5
Unless otherwise specified within an individual test section, only the worst-case
component(s) (extendible element, door, etc.) per unit need be tested. This will typically be the
largest component(s) of each construction/mounting type. Note that for some tests such as
impact, dislodgement and stability, the smallest or lightest product may be the worst-case
condition. If the worst-case condition is not readily evident, multiple components may require
testing.
3.1.6
It is not intended that all of the tests in this standard be conducted on a single unit.
Tests may be conducted on a single unit or a series of units at the discretion of the
manufacturer with the exceptions that functional loads and proof loads shall be applied to the
same components in the same unit; and strength tests of leg assemblies of identical
construction must be performed on a single leg. Only one extendible element or door of each
type, as applicable, per unit shall be tested.
It is not necessary to repeat the tests for a
particular type of extendible element or door because more than one is provided as part of a
unit.
Similarly, this rule of testing a singular item also applies to leg/supports or other
assemblies when these items are of identical construction.
3.1.7
The test setup for each test may include cycling devices or other fixturing. Unless
otherwise specified, these fixtures shall not support or add vertical or horizontal loads to the
product being tested. When cycling extendible elements the attachment method should apply
the forces to the pull across a maximum of 75 mm (3 in.) wide area to simulate loading by a
human hand. The cycling device should be attached to the extendible element pull whenever
feasible. When it is not feasible to attach to the pull and/or for integrated pulls (i.e., full length
pull areas) the attachment may be made in the pull area.
3.1.8
For the specific component test evaluations, test fixtures that replicate the interface of
the component to the system may be used to support the test specimen unless otherwise
specified. When used, test fixtures may be secured against tipping or movement. The method
of securing the test fixture shall not affect the load application.
3.1.9
If components are intended to be attached to the desk/table unit, the entire unit including
interfacing hardware and/or brackets must meet the applicable static loading and durability tests
within this standard.
3.1.10 The tests may be conducted in any sequence.
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ANSI/BIFMA X5.5-2014
3.2
Manufacturer's Instructions
When a manufacturer provides specific assembly/installation instructions, product safety labels,
or maintenance adjustments that may be required in order to keep the product in good operating
condition, these instructions shall be followed during testing unless otherwise specified by the
test procedures herein.
3.3
Clearance Between Adjusting Primary and Secondary Surfaces
The clearance between a vertically user-adjustable primary or secondary surface and any
adjacent surface shall not be less than 25 mm (1 in.). A clearance less than 8 mm (0.3 in.) is
acceptable where the clearance is maintained throughout the travel of the adjusting surface.
Articulating keyboard support surfaces and monitor arms are exempt from this requirement.
3.4
Figures
Figures provided in this standard are guidelines only and are not representative of all possible
test configurations.
3.5
Figure Symbols
= FORCES
22
= EVENLY DISTRIBUTED FORCE
= TEST WEIGHT
= SECURED OR CLAMPED TO TEST
PLATFORM
= HORIZONTAL MOTION PREVENTED
= DIRECTION OR MOTION
3.6
Tolerances
Unless otherwise specified, tolerances on test equipment, measuring equipment and loading
devices, shall be:
• Test weights, forces, velocities, and time, ± 5%
• Linear measurements, ± 1.5 mm (0.06 in.)
• Angles, ± 5 degrees
• Level, within 5 mm per meter (0.06 in. per linear foot) or within +/- 0.3 degrees
• Cycle requirements are minimums
Test weights, forces, dimensions, angles, time, rates and velocities shall be targeted at the
nominal values specified.
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ANSI/BIFMA X5.5-2014
3.7
Pretest Inspection
Before beginning the testing, visually inspect the unit thoroughly. Record any defects so that
they are not assumed to have been caused by the tests.
3.8
Test Report Format
When a test report is required, the following information should be included:
1.
A title: (i.e., "Test Report");
2.
Name and address of the laboratory, and the location where the tests were carried out, if
different from the address of the laboratory;
3.
Unique identification of the report (such as serial number) and on each page an
identification in order to ensure that the page is recognized as part of the test report and a
clear identification of the end of the test report;
4.
Name and address of the client (where applicable);
5.
Description and unambiguous identification of the item tested (i.e., model number,
manufacturing date, etc.);
6.
Characterization and condition of the test item;
7.
Date of receipt of the test item;
8.
Date(s) of the performance of test;
9.
Identification of the test method used;
10.
Any additions to, deviations from, or exclusions from the test method (such as
environmental conditions);
11.
The name(s), function(s) and signature(s), or equivalent identification of the person(s)
authorizing the test report;
12.
Where relevant, a statement to the effect that the results relate only to the items tested;
13.
Date of issue of the report;
14.
Test results with, where appropriate, the units of measurement and a statement of
compliance/non-compliance with requirements and/or specifications;
15.
A statement that the report shall not be reproduced, except in full, without the written
approval of the laboratory.
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ANSI/BIFMA X5.5-2014
X
LOADING MATERIAL:
672 ± 80 kg/m3
(42 ± 5 lb/ft3)
OTHER MATERIAL
TOP VIEW
FRONT
Y
A=B = 0 to 13mm (0.0
to 0.5 in.)
LOADING MATERIAL
MUST OCCUPY A
MINIMUM OF 70%
OF THE CLEAR
HEIGHT
A
X = 25 mm ± 6mm
(1.0 in. ± 0.25 in.)
B
Y = 25 mm ± 6mm
(1.0 in. ± 0.25 in.)
SIDE VIEW
FRONT VIEW
Figure 3a - Loading Configuration for Extendible Elements (Deeper than Wide) With
Bottoms
X
LOADING MATERIAL:
3
672 ± 80 kg/m
3
(42 ± 5 lb/ft )
OTHER MATERIAL
Y
FRONT
LOADING MATERIAL
MUST OCCUPY A
MINIMUM OF 70%
OF THE CLEAR
HEIGHT
A
B
B
A
FRONT VIEW
A=B = 0 to 13mm
(0.0 to 0.5 in.)
LOADING MATERIAL MAY BE CONFIGURED IN SINGLE OR MULTIPLE
STACKS.
X = 25 mm ± 6mm
(1.0 in. ± 0.25 in.)
Y = 25 mm ± 6mm
(1.0 in. ± 0.25 in.)
Figure 3b - Loading Configuration for Extendible Elements (Wider than Deep) With
Bottoms
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ANSI/BIFMA X5.5-2014
LOADING MATERIAL:
672 ± 80 kg/m
3
(42 ± 5 lb/ft )
X
3
TOP VIEW
OTHER MATERIAL
Y
FRONT
LOADING MATERIAL
MUST OCCUPY A
MINIMUM OF 70% OF
THE CLEAR HEIGHT
A=B = 0 to 13mm
(0.0 to 0.5 in.)
A
B
X = 25mm ± 6mm
(1.0 in. ± 0.25 in.)
Y = 25mm ± 6mm
(1.0 in. ± 0.25 in.)
SIDE VIEW
FRONT VIEW
Figure 3c - Loading Configuration for Extendible Elements (Deeper than Wide) Without
Bottoms
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ANSI/BIFMA X5.5-2014
X
LOADING MATERIAL:
3
672 ± 80 kg/m
3
(42 ± 5 lb/ft )
OTHER MATERIAL
TOP
VIEW
LOADING
MATERIAL MUST
OCCUPY A
MINIMUM OF 70%
OF THE CLEAR
HEIGHT
Y
FRONT
VIEW
SIDE VIEW
X = 25mm ± 6mm
(1.0 in. ± 0.25 in.)
Y = 25mm ± 6mm
(1.0 in. ± 0.25 in.)
Figure 3d - Loading Configuration for Extendible Elements (Wider than Deep) Without
Bottoms
3.9
Loading Configurations
3.9.1
Loading Material for Extendible Elements
The functional loading material shall have a density of 672 ± 80 kg/m3 (42 ± 5 lb./ft.3). A typical
loading material could be 721 kg/m3 (45 lb./ft.3) industry standard particleboard or typical bond
copier paper.
The loading material size may be adjusted to accommodate the size of the
extendible element to be tested. If necessary, up to 15% of the weight may be made up of
higher density plates placed on edge centered between the other loading material.
For
extendible elements with clear heights greater than 216 mm (8.5 in.) the loading material shall
be placed on its edge to minimize deflection of the extendible element bottom. For extendible
elements with clear heights less than 216 mm (8.5 in.) the loading material does not need to be
placed on its edge.
Note: Higher density materials may be used for proof loads.
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ANSI/BIFMA X5.5-2014
3.9.2
Loading Material for Other Than Extendible Elements
Loading material of any density that meets the weight requirements of the test may be used.
(Examples: concrete bricks, shot bags, metal plates, sand bags, typical bond copier paper, etc.).
3.9.3
Loading Configurations for Extendible Elements with Bottom Supported Loads
(See Figures 3a and 3b)
The clear space within an extendible element shall be loaded using the materials specified in
Section 3.9.1. The loading material shall be uniformly distributed front to rear, and side-to-side
in the bottom of the extendible element. The air gap in the front and the air gap in the rear shall
each be 25 mm ± 6 mm (1.0 in. ± 0.25 in.). The volumetric distribution of the loading materials
may be adjusted with the use of rigid materials (such as expanded polystyrene foam, steel, etc.
– see “other materials” in Figures 3(a-d)) in order to obtain the specified front and rear air gaps.
The front and rear air gaps shall be free of any materials.
See Figure 3a for extendible
elements which are deeper than wide. See Figure 3b for extendible elements which are wider
than deep.
3.9.4
Loading – Configurations for extendible elements for hanging-file supported loads
(See Figure 3c and 3d)
The loading material specified in Section 3.9.1 shall be placed in hanging file folders of the
appropriate size. The loading material shall be uniformly distributed front to rear, and side-toside. The air gap in the front and the air gap in the rear shall each be 25 mm ± 6 mm (1.0 in. ±
0.25 in.). The volumetric distribution of the loading materials may be adjusted with the use of
rigid materials (such as expanded polystyrene foam, steel, etc. – see “other materials” in
Figures 3a - 3d) in order to obtain the specified front and rear air gaps. The front and rear air
gaps shall be free of any materials. See Figure 3c for extendible elements which are deeper
than wide. See Figure 3d for extendible elements which are wider than deep.
Note: Where extendible elements have the capability of supporting loads both on the bottom
and in hanging folders, test in accordance with 3.9.3.
3.9.5
Load Application
Excluding extendible elements, loads may be secured to surfaces to prevent movement during
the test. The method of securing the loads shall not enhance or compromise the structure of the
component(s) being tested.
When loads are applied through load disks, the load shall be
centered on the disk.
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ANSI/BIFMA X5.5-2014
3.9.6
Test Force Application
To ensure that negligible dynamic force is applied, the forces in the static force tests shall be
applied sufficiently slowly until the target load/force is achieved, and then remove the load/force.
Where time limits are given, loads and forces shall be maintained according to the tolerance
given in Section 3.6 unless otherwise specified.
3.10
Temperature and Humidity Considerations
Products should be conditioned to ambient conditions for temperature and relative humidity prior
to testing.
3.11
Cycle Rates
The cycle rates given in each test method shall be used unless the product’s mechanism may
be compromised. In some product designs, the mechanism may have a self-activating or selflimiting travel speed (e.g. “soft-close” or “soft-open” doors) that may be damaged by the
specified cycle rates. In these cases, the test device and cycle rate shall be adjusted to allow
the unit to perform as designed without over-riding the normal travel speed of the device. Any
deviation from the standard testing procedures shall be noted in the test report (see 3.8 no. 10).
3.12
Glass Surfaces
For horizontal surfaces, glass shall meet the requirements of ASTM F2813-2012 Standard
Specification for Glass Used as a Horizontal Surface in Desks and Tables. This specification
covers performance requirements to ensure the use of safety glass when used as an
unenclosed horizontal surface under 1118 mm (44 in.) in height used in desks and tables.
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ANSI/BIFMA X5.5-2014
Table 1 – Test Loads
Functional Load
Surface Class
Primary
Proof Load
Surface Size
Length ≤1143 mm
(length ≤ 45 in.)
Concentrated
91 kg
(200 lb.)
Distributed
1143mm < length
≤ 1829 mm
(45 in.< length ≤ 72 in.)
91 kg
(200 lb.)
Primary
Length > 1829 mm
(length > 72 in.)
Benching
Systems
Length > 1829 mm
(length > 72 in.)
Primary
Calculate load based
Secondary,
Transaction and on the height of the
available space above
Shelf
1
Concentrated
136kg
(300 lb.)
Distributed
0.027 kg/mm
(1.5 lb./in.) of
perimeter
136kg
(300 lb.)
0.041 kg/mm
(2.3 lb./in.) of
perimeter
Two loads of
91 kg
(200 lb.) each
0.027 kg/mm
(1.5 lb./in.) of
perimeter
Two loads of
136 kg
(300 lb.) each
0.041 kg/mm
(2.3 lb./in.) of
perimeter
Two loads of
91 kg
(200 lb.) each
0.064 kg/mm
(3.6 lb./in.) of length
N/A
0.097 kg/mm
(5.4lb./in.) of length
N/A
470 kg/m
3
(0.017 lbs./in. )
N/A
720 kg/m
3
(0.026 lb./in. )
N/A
0.040 kg/mm
(2.25 lb./in.)
N/A
211 kg/m
2
(0.30 lb./in. )
N/A
3
the surface , but not >
305mm (12 in.)
N/A
3
Display Shelf
All Sizes (length)
N/A
0.027 kg/mm
(1.5 lb./in.)
Storage/Hutch
Top
Unit height ≤ 1524
mm (60 in.)
N/A
141 kg/m
2
(0.20 lb./in. )
Storage/Hutch
Top
Unit height > 1524
mm (60 in.)
N/A
63 kg/m
2
(0.09 lb./in. )
N/A
99 kg/m
2
(0.14 lb./in. )
Door Shelf
All Sizes (length)
N/A
0.018 kg/mm
(1 lb./in.)
N/A
N/A
Extendible
Element
Calculate load
based on the clear
space
All sizes
N/A
470 kg/m
3
(0.017 lb./in. )
N/A
720 kg/m
3
(0.026lb./in. )
N/A
2.3 kg
(5 lb.)
N/A
N/A
Width ≤ 914 mm
(width ≤ 36 in.) at
the leading edge
All Sizes
N/A
30 kg
(66 lb.)
N/A
45 kg
(100 lb.)
N/A
30 kg
(66 lb.)
N/A
45 kg
(100 lb.)
Adjustable
Keyboard
Support
Input Device
Support Surfaces
Width > 914mm
(width > 36 in.) at
the leading edge
All sizes
N/A
45 kg
(100 lb.)
N/A
68 kg
(150 lb.)
N/A
2.3 kg
(5 lb.)
N/A
3.4 kg
(7.5 lb.)
Writing Shelf
All Sizes
N/A
N/A
N/A
Monitor Arm
All Sizes
Per manufacturer
11 kg
(25 lb.)
N/A
N/A
N/A
Low Height
Drawer
Adjustable
Keyboard
Support
Keyboard/Laptop
Table weighing more
2
2
3
2
2
3
than 6.8 kg (15 lbs.)
Note: See Section 2.48 for definitions of surface classifications.
1
The available space above the surface shall be determined using the concept of the largest rectangular
box that will fit into the space. This concept is similar to that described in Section 2.6 “Clear Dimensions”.
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ANSI/BIFMA X5.5-2014
Table 2
Attachment Location for Pull Type
Pull Type/Position
Narrow pull ≤ 33% of extendible
element/door front width or
height (center pulls and single
side pulls) or less than or equal
to 457 mm (18 in.) in width
Wide Pull > 33% of extendible
element/door front width or
height and greater than 457 mm
(18 in.) in width
Dual Side Pulls
Device Attachment
Center of pull area.
Three areas (one at a time):
1) Center of pull area.
2) At a distance from the right hand edge (or top of the
door for horizontally sliding doors) of the extendible
element/door front equal to one-sixth of the
extendible element/door front width (or height for
horizontal sliding doors) ± 6 mm (0.25 in.) or from
one end of the pull, whichever is a greater distance
from the edge/top of the extendible element/door.
3) At a distance from the left hand edge (or bottom of
the door for horizontally sliding doors) of the
extendible element/door front equal to one-sixth of
the extendible element/door front width (or height for
horizontal sliding doors) ± 6 mm (0.25 in.) or from
one end of the pull, whichever is a greater distance
from the edge/bottom of the extendible
element/door.
Center of the right hand pull and then the center of the
left hand pull.
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ANSI/BIFMA X5.5-2014
FRONT VIEW
UNLOADED
UNLOADED
CLOSED
CLOSED
LOADED
LOADED
OPEN
OPEN
LOADED
UNLOADED
UNLOADED
LOADED
CLOSED
FRONT VIEW
UNLOADED
OPEN
CLOSED
UNLOADED
UNLOADED
CLOSED
OPEN
UNLOADED
UNLOADED
CLOSED
CLOSED
CLOSED
UNLOADED
CLOSED
CLOSED
Figure 4a - Stability with Extendible Elements Open Test
25 mm (1 in.)
25 mm (1 in.)
TOP VIEW
TOP VIEW
PLACE IN LEAST STABLE
POSITION ANYWHERE ALONG
PERIMETER (Note: FOR TABLES
GREATER THAN 1,829 mm (72 in.)
IN LENGTH, PLACE TWO LOADS
PER 4.3.2.
PLACE IN LEAST
STABLE
POSITION
ANYWHERE
ALONG
PERIMETER
DISK
DISK
57 kg
(125 lb.)
57 kg
(125 lb.)
SIDE VIEW
SIDE VIEW
Figure 4b - Stability Under Vertical Load
Test
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ANSI/BIFMA X5.5-2014
EXAMPLES OF HOW TO CENTER
THE LOADS
178 mm
(7 in.)
305 mm
(12 in.)
305 mm
(12 in.)
Figure 4c - Stability Loading for Irregular Shaped Tables
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ANSI/BIFMA X5.5-2014
178 mm
(7 in.)
4
Stability Tests
Notes:
- For all stability tests, if the manufacturer's instructions indicate the unit is to be secured
to the permanent building structure, other units, or otherwise restricted in their
placement, the test shall be performed with those securing means or placement
restrictions in place during the test. Counterweights or other stability devices shall be
used in accordance with the manufacturer's instructions.
- Tilt-top tables shall be tested in both the open (in-use) position and in the closed
(stowed or nested) position. Tables in the open postion shall be tested per Section 4.2
through 4.4 as applicable. Tables in the closed postion shall be tested per Section 4.6.
- Benching Systems are tested for Stability per Section 5.8.
4.1
Purpose of Tests
The purpose of these tests is to evaluate the stability of the desk/table product.
4.2
Stability with Extendible Elements Open Test (See Figure 4a)
4.2.1 Test Setup
a) The unit shall be placed on a test platform and leveled. If the unit is equipped with
glides, extend them to their midpoint but not to exceed 13 mm (0.5 in.) from the fully
retracted position. If equipped with casters, each front caster shall be blocked with an
obstruction or other restraining device 13 mm (0.5 in.) in height affixed to the test
platform. The device shall prevent sliding but not restrict the unit from tipping. Casters
shall be oriented in their least stable position.
b) Determine the two extendible elements that, when loaded and opened, provide the least
stable condition. (This may require evaluation of whether interlocked extendible
elements can be opened if they are activated simultaneously). Load these extendible
elements with the functional load specified per Table 1. The load shall be configured per
Section 3.9. If the unit does not allow two extendible elements to be opened
simultaneously, only load the largest capacity extendible element. More than one
loading configuration may be required to verify that the least stable condition has been
evaluated.
c) All remaining extendible elements and desk/table components shall be in the closed
position, unlocked, and not loaded.
4.2.2 Test Procedure
Gradually open the loaded extendible element(s) to the fullest extension the unit will
allow. (Open simultaneously if there are two extendible elements).
4.2.3 Acceptance Level
The unit shall not tip over. If open extendible elements prevent the unit from tipping over
due to contact with the test platform, the unit does not meet the acceptance criteria.
Note: The use of devices such as casters on a bottom extendible element is an
acceptable method of preventing tipping.
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ANSI/BIFMA X5.5-2014
4.3
Stability Under Vertical Load Test (See Figure 4b and 4c)
Note: This test applies to table/desks with or without extendible elements. This test
does not apply to Keyboard/Laptop Tables or Benching Systems.
4.3.1
Test Setup
The unit shall be placed on a level platform and leveled in its normal operating position.
Any extendable elements shall be closed and unloaded. Adjustable height desk/tables
shall be positioned at a height that places the desk/table in its least stable condition.
4.3.2
a)
Test Procedure
For tables less than or equal to 72 in. in length: Place a 305 mm (12 in.) diameter disk
so that its center is 178 mm (7 in.) from the edge of the top at the least stable location.
If the center of the disk is greater than 305 mm (12 in.) from a corner of the top, move
the disk such that its center is 305 mm (12 in.) from the corner keeping the edges of the
disk equidistant from both sides of the top. If, at the least stable position, the top has a
depth less than 356 mm (14 in.), center the loading disk across the depth at that
position.
For tables greater than 72 in. in length: Place two 305 mm (12 in.) diameter disks 36 in.
apart (center-to-center) so that their centers are 178 mm (7 in.) from the edge of the top
at the least stable location. If the center of a disk is greater than 305 mm (12 in.) from a
corner of the top, move the disk such that its center is 305 mm (12 in.) from the corner
keeping the edges of the disk equidistant from both sides of the top. If, at the least
stable position, the top has a depth less than 356 mm (14 in.), center the loading disks
across the depth at that position. (See Figures 4b and 4c).
b)
Place a 57 kg (125 lb.) static load on the disk(s).
c)
If necessary, repeat steps (a) and (b) to verify the least stable position has been
evaluated.
4.3.3
Acceptance Level
The unit shall not tip over.
If one of more extendible elements opens during the test and
prevents the unit from tipping over due to contact with the test platform, the unit does not meet
the acceptance criteria.
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ANSI/BIFMA X5.5-2014
LOAD
ANGLE
FORCE
FORCE APPLIED
NOT MORE THAN 13
MM BELOW THE
TOP EDGE;
GEOMETRY OF
EDGE MAY BE
ALTERED IF
NECESSARY TO
ALLOW
APPLICATION OF
LOAD
90°
(PERPENDICULAR)
IMAGINARY
LINE
FORCE
LOAD
SIDE VIEW
OBSTRUCTION
TOP VIEW
CASTER
TEST
FIXTURE/ADAPTER,
IF NECESSARY, TO
ASSURE
PERPENDICULAR
LOADING TOWARDS
OBSTRUCTIONS
OBSTRUCTION
IMAGINARY
LINE
90°
(PERPENDICULAR)
OBSTRUCTION
LOAD
Figure 4d - Horizontal Stability Test for Units with or without Casters
4.4 Horizontal Stability Test for Desk/Tables with Casters (See Figure 4d)
Note: this test applies to table/desks with or without extendible elements. If screens or modesty
panels are available with the desk/table, the unit shall include them if they contribute to the
worst case condition. This test does not apply to keyboard/laptop tables (See Section 4.5).
4.4.1 Test Setup
The unit shall be placed on a level platform and leveled. Adjustable height desk/tables shall be
positioned at a height that places the desk/table in its least stable condition. Locate screens
and modesty panels in the least stable position.
4.4.2 Test Procedure
a) Apply a 11.4 kg (25 lb.) static load through a 203 mm (8 in.) diameter disk centered 102
mm (4 in.) from the edge of the top of the desk/table at the least stable location.
b) The casters that primarily support the load in (a) shall be blocked with an obstruction or
other restraining device 13 mm (0.5 in.) in height affixed to the test platform. The device
shall prevent sliding but not restrict the unit from tipping. Casters shall be oriented in
their least stable position.
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ANSI/BIFMA X5.5-2014
c) Gradually apply a horizontal force to the top surface, perpendicular to the worst case
fulcrum (“tipping line”) but not more than 13 mm (0.5 in.) below the top surface directly
opposite the load. If the geometry of the top surface does not permit a direct application
of the load, the geometry of the top surface may be altered to accommodate the 13 mm
(0.5 in.) dimension. (See Fig. 4d). The load shall be applied perpendicular to the line
formed by the caster obstruction(s) in (b), until 44.5 N (10 lbf.) is reached, or the product
tilts to 10 degrees minimum, whichever occurs first. The force applied shall remain
horizontal throughout its application. (Angle measuring device must be accurate to within
± 0.5 degree). A test fixture/adapter shall be used if the edge of the top is not parallel to
the line formed by the obstruction(s) in (b). (Fig. 4d)
d) If necessary, repeat Steps (a) through (c) to verify the least stable position has been
evaluated.
4.4.3 Acceptance Level
The unit shall not tip over. If an extendible element(s) opens during the test and prevents the
unit from tipping over due to contact with the test platform, the unit does not meet the
acceptance criteria.
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ANSI/BIFMA X5.5-2014
4.5 Stability Test for Keyboard/Laptop Tables (with and without casters) (See Figure 4d)
Note: This test does not apply to lightweight keyboard/laptop tables weighing less than or equal
to 7 kg (15 lbs.).
4.5.1 Test Setup
The unit shall be placed on a level platform and leveled. Adjustable height tables shall be
positioned at a height that places the table in its least stable condition.
4.5.2 Test Procedure
a) Apply a 4.5 kg (10 lb.) static load through a 203 mm (8 in.) diameter disk centered 102
mm (4 in.) from the edge of the top of the desk/table at the least stable location.
b) The feet/casters that primarily support the load in (a) shall be blocked with an obstruction
or other restraining device 13 mm (0.5 in.) in height affixed to the test platform. The
device shall prevent sliding but not restrict the unit from tipping. If present, casters shall
be oriented in their least stable position.
c) Gradually apply a horizontal force to the top surface, perpendicular to the worst case
fulcrum (“tipping line”) but not more than 13 mm (0.5 in.) below the top surface directly
opposite the load. If the geometry of the top surface does not permit a direct application
of the load, the geometry of the top surface may be altered to accommodate the 13 mm
(0.5 in.) dimension. (See Fig. 4d). The load shall be applied perpendicular to the line
formed by the feet/caster obstruction(s) in (b), until 44.5 N (10 lbf.) is reached, or the
product tilts to 10 degrees minimum, whichever occurs first. The force applied shall
remain horizontal throughout its application. (Angle measuring device must be accurate
to within ± 0.5 degree). A test fixture/adapter shall be used if the edge of the top is not
parallel to the line formed by the obstruction(s) in (b). (Fig. 4d)
d) If necessary, repeat Steps (a) through (c) to verify the least stable position has been
evaluated.
4.5.3 Acceptance Level
The unit shall not tip over.
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ANSI/BIFMA X5.5-2014
FORCE
4
3
1372 mm
(54 in.)
10°
REAR VIEW
LEFT SIDE
203 mm (8 in.)
DIA DISK
FORCE
1
2
1372 mm
(54 in.)
10°
FRONT VIEW
RIGHT SIDE
Figure 4e - Force Stability Test for Tall Desk/Table Products
4.6
Force Stability Test for Tall Desk/Table Products (See Figure 4e)
This test applies to any unit that is higher than or can be adjusted to heights greater than 1067
mm (42 in.). This includes tables that can be tilted up in a stowed position (flip top tables) that
are taller than 1067 mm (42 in.) when in the stowed (for storage) position. This test also applies
to units with mechanically attached screen or storage segments that are greater than 1067 mm
(42 in.) in height and weigh more than 4.5 kg (10 lbs.). This test does not apply to screen or
storage segments installed exclusively in between double sided benching systems and
desk/table products.
4.6.1
Purpose of Test
The purpose of this test is to evaluate the stability of tall desk/table products.
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ANSI/BIFMA X5.5-2014
4.6.2
Test Setup
The unloaded desk/table unit shall be placed on a test platform and leveled or positioned in
accordance with the manufacturer's instructions. If the unit is equipped with glides, extend them
to their midpoint but not to exceed 13 mm (0.5 in.) from the fully retracted position. Glides, feet
or casters shall be blocked with an obstruction or other restraining device 13 mm (0.5 in.) in
height affixed to the test platform. The device shall prevent sliding but not restrict the unit from
tipping. Adjustable height desk/tables shall be positioned at a height that places the desk/table
in its least stable condition. Casters shall be oriented in their least stable position. Doors and/or
extendible elements in the desk/table unit shall be closed and unlocked.
4.6.3
Test Procedure
a) Apply the horizontal forces through the center of a disk that is 203 mm (8 in.) in
diameter. If the geometry of the product inhibits the use of the 203 mm (8 in.) disk, apply
the force through a smaller diameter disk. If the location for the force is centered on an
open area, then move the location of the force to the closest vertical or horizontal
location on the unit.
b) Gradually increase the force until 177 N (40 lbf.) is reached, the product tilts to 10
degrees, or the horizontal movement at the point of application is 165 mm (6.5 in.)
whichever occurs first (angle measuring device must be accurate to within ± 0.5 degree)
at the locations specified in step (c).
c) The forces shall be applied one at a time to the following locations in the order given
located 1372 mm (54 in.) from the floor or 102 mm (4 in.) down from the top edge,
whichever is lower:
location 1:
Apply force to front of the product at its left side,
location 2:
Apply force to front of the product at its right side,
location 3:
Apply force to back of the product at its left side,
location 4:
Apply force to back of the product at its right side.
See Figure 4e for a description of the force locations.
4.6.4
Acceptance Level
The unit shall not tip over, and there shall be no loss of serviceability. Assembled desk/table
products shall not disengage. If one or more extendible elements opens during the test and
prevents the unit from tipping over due to contact with the test platform, the unit does not meet
the acceptance criteria.
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ANSI/BIFMA X5.5-2014
EXTENDIBLE
ELEMENTS LOADED
AND EXTENDED (2)
305 mm (12 in.) DISK
CONCENTRATED
LOAD
25 mm
(1 in.)
Figure 5a – Concentrated Load Test for Primary Surfaces
Example 1) Center point of longest unsupported span
Example 2) Longest distance from cantilevered support to work surface edge
Example 3) Either side of ganged surface edges
Figure 5b - Top View of Placement of Concentrated Load Test
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ANSI/BIFMA X5.5-2014
2.6 m
(102 in.)
Figure 5c - Top View of Ganged Units Surface Size
Determination
178 mm
(7 in.)
A
A
914 mm
(36 in.)
178 mm
(7 in.)
Figure 5d - Top View of Dual Concentrated Load Tests
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ANSI/BIFMA X5.5-2014
2.6 m
(102 in.)
5
Unit Strength Tests
Notes:
-
The following unit strength tests may be conducted in any order (concentrated vs.
distributed loadings), however the functional loadings should be applied prior to the proof
loadings.
-
Benching Systems as defined in 2.4 are to be tested per sections 5.2, 5.8 and 5.9. The
tests in 5.8 and 5.9 do not apply to desk extensions (returns) that are fastened to
Benching Systems. Desk extensions when attached to Benching System products shall
be tested to the applicable tests per 5.2-5.5.
-
These tests do not apply to keyboard/laptop tables weighing less than or equal to 6.8 kg.
(15 lbs.).
5.1
Purpose of Tests
The purpose of these tests is to evaluate the ability of the unit to withstand static loads when
loaded to its full capacity. Combined components shall be tested simultaneously as a unit (See
definition 2.55). For cabinets with doors that stow above the cabinet top, the top surface shall
not be loaded during these tests.
5.2
Concentrated Functional Load Test (See Figures 5a-d and 4c)
Note: This test does not apply to units with a primary surface greater than 965 mm (38 in.) in
height. This test applies to adjustable height tables that can be adjusted to 965 mm (38 in.) or
less. This test applies to Benching Systems (See also 5.8 and 5.9).
5.2.1
Test Setup
a) The unit shall be leveled and the base may be secured to the test platform to prevent
tipping. The method of securing shall not affect the load application. If the unit requires
support from adjacent units, all units shall be tested together as a system. Adjustable
height tables shall be adjusted to their highest position but not to exceed 965 mm (38
in.).
b) Apply the specified concentrated load to the primary surface per Table 1 through a 305
mm (12 in.) diameter disk so that its center is 178 mm (7 in.) from the unit’s edge at its
apparent weakest point. (See Section 4 for load application of non-rectangular tables). If
at the apparent weakest point the top has a depth less than 356 mm (14 in.), center the
loading disk across the depth at that position. Ganged unit surfaces where ganging
device(s) provide structural support to the unit shall be tested as a single surface.
(Large ganged surfaces shall be tested in accordance with 5.2.1c).
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ANSI/BIFMA X5.5-2014
When the weakest point is not obvious, several load applications may be necessary to
properly test the product. The following are some typical weakest points (see Figure 5b):
example 1) Center point of longest unsupported span.
example 2) Longest distance from cantilevered support to work surface edge.
example 3) Each side of ganged surface edges.
c) When testing ganged units where the surface size is such that a 2.6 m (102 in.) chord
can fit within the area of the tops (See Figure 5c), (See Step 5.2.1b (Example 3)), two
concentrated loads are required. The concentrated loads, described in Table 1, are
applied through 305 mm (12 in.) diameter disks. Place the two 305 mm (12 in.) diameter
disks equidistant about the ganged edge while maintaining the centers of these disks
914 mm ± 25 mm (36 in. ± 1.0 in.) apart and 178 mm (7 in.) in from the edge of the
ganged unitʼs top (see Figure 5d). If there are more than two ganged surfaces, they
shall remain unloaded during the testing.
d) When testing units with lengths (or diameters) greater than 1829 mm (72 in.), two
concentrated loads are required. The concentrated loads, described in Table 1, are
applied through 305 mm (12 in.) diameter disks. The centers of these disks shall be
placed 915 mm ± 25 mm (36 in. ± 1.0 in.) apart and 178 mm (7 in.) in from the edge of
the primary surface at the apparent weakest point. See Section 5.2.1b for guidelines.
e) All remaining surfaces and extendible elements shall be loaded according to the
distributed functional loads per Table 1. The largest two extendible elements shall be
fully opened for the duration of the test. If the unit contains an interlock that will not allow
two extendible elements to be opened simultaneously, open the largest capacity
extendible element(s).
5.2.2
Test Procedure
a) Loads shall be allowed to remain for 60 minutes.
b) Remove only the concentrated load(s) from the primary surface.
c) Without removing any other loads, perform the Pull Force Test in Section 19.
5.2.3
Acceptance Level
There shall be no loss of serviceability. Upon completion of the test, the extendible member(s)
shall meet the pull force requirements of Section 19 as tested in 5.2.2.
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ANSI/BIFMA X5.5-2014
DISTRIBUTED LOAD
centerline
of load
203 mm (8 in.)
EXTENDIBLE
ELEMENTS LOADED
AND EXTENDED (2)
Figure 5e - Distributed Load Tests for Primary Surfaces
DISTRIBUTED LOAD
Figure 5f - Distributed Load Tests for Secondary Surfaces
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ANSI/BIFMA X5.5-2014
CENTERLINE OF
DISTRIBUTED
LOADS
RECTANGULAR
DESK/TABLE
203 mm (8 in.)
ROUND
DESK/ TABLE
203 mm (8 in.)
IRREGULARLY
SHAPED
DESK/TABLE
CONFERENCE
TABLE
203 mm (8 in.)
203 mm (8 in.)
SYSTEM OF UNITS
TESTED TOGETHER
203 mm (8 in.)
Figure 5g - Top View of Distributed Load Tests for Primary Surfaces
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ANSI/BIFMA X5.5-2014
LOAD PER TABLE 1
! 914 mm
(! 36 in.)
LOAD PER TABLE 1
> 914 mm
(> 36 in.)
Figure 5h - Distributed Load Tests for Adjustable Keyboard Supports
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ANSI/BIFMA X5.5-2014
5.3
Distributed Functional Load Test (See Figures 5e through 5h)
5.3.1
Test Setup
a) The unit shall be leveled and the base may be secured to the test platform to prevent
tipping. The method of securing shall not affect the load application. If the unit requires
support from adjacent units, all units shall be tested together as a system. Adjustable
height tables shall be adjusted to their highest position. Keyboard support surfaces shall
be loaded in their worst-case position.
b) Depending on the desk/table surface classification, apply the specified distributed loads
per Table 1. For primary surfaces, loads shall be evenly distributed and centered over a
line 203 mm (8 in.) in from the edge along the entire perimeter. For surfaces that are
less than 406 mm (16 in.) deep, evenly distribute the load across the surface. The loads
may be secured to the surface if necessary to perform this test.
c) The largest two extendible elements shall be fully opened for the duration of the test. If
the unit contains an interlock that will not allow two extendible elements to be opened
simultaneously, open the largest capacity extendible element(s).
5.3.2
Test Procedure
a) Loads shall be allowed to remain for 60 minutes.
b) Close the extendible elements.
c) Without removing any load, perform the Pull Force Test in Section 19.
5.3.3
Acceptance Level
There shall be no loss of serviceability. Upon the completion of the test, the extendible
member(s) shall meet the pull force requirements of Section 19 as tested in 5.3.2.
5.4
Concentrated Proof Load Test (See Figures 5a-d and 4c)
Note: This test does not apply to units with a primary surface greater than 965 mm (38 in.) in
height. This test applies to adjustable height tables that can be adjusted to 965 mm (38 in.) or
less.
5.4.1
Test Setup
The setup shall be performed per Section 5.2.1 with the appropriate concentrated proof load per
Table 1, except for the extendible elements, which shall remain loaded with the distributed
functional loads.
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ANSI/BIFMA X5.5-2014
5.4.2
Test Procedure
Loads shall be allowed to remain for 15 minutes and then removed.
5.4.3
Acceptance Level
There shall be no sudden and major change in the structural integrity of the product. Loss of
serviceability is acceptable.
5.5
Distributed Proof Load Test (See Figures 5e-h)
5.5.1
Test Setup
Perform the setup per Section 5.3.1 using the appropriate distributed proof loads per Table 1,
except for the extendible elements, which shall remain loaded with the functional loads.
5.5.2
Test Procedure
Loads shall be allowed to remain for 15 minutes and then removed.
5.5.3
Acceptance Level
There shall be no sudden and major change in the structural integrity of the product. Loss of
serviceability is acceptable.
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ANSI/BIFMA X5.5-2014
34 kg (75 lb.) weight.
Per 5.6.2c: The strap,
cable and/or the
weight shall not
contact any other
surface.
Figure 5i - Transaction Surface Torsion Load Test
5.6
Transaction Surface Torsion Load Test (see Figure 5i)
5.6.1
Purpose of Test
The purpose of this test is to evaluate the ability of the transaction surface to withstand
torsional static loads which they may be subjected to when in use. If it is not clear if a
surface is secondary or transaction, this test applies.
5.6.2
Test Setup
a) The unit shall be leveled and the base may be secured to the test platform to prevent
tipping. The method of securing shall not affect the load application.
b) Attach a strap or stranded metallic cable to one edge of the transaction surface at its
apparent weakest point.
c) Pass the strap or stranded metallic cable over the top of the transaction surface and
allow it to hang vertically below the opposite edge. The strap, cable and/or the weight
shall not contact any other surfaces.
d) Attach a 34 kg (75 lb.) weight to the free end of the strap or cable.
5.6.3
Test Procedure
a) Allow the suspended weight to remain in place for 15 minutes.
b) Remove the weight.
c) If the transaction surface and/or its support are not symmetrical, repeat the test with the
weight suspended from the opposite edge.
5.6.4
Acceptance Level
There shall be no loss of serviceability.
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ANSI/BIFMA X5.5-2014
5.7
Extendible Element Static Load Tests
5.7.1
Purpose of Tests
The purpose of these tests is to ensure that the extendible element (including suspension
system, interlock, in-stop/anti-rebound, detent mechanisms, etc.) is durable and/or capable of
supporting typical loads.
5.7.2
Extendible Element Functional Load Test
The functional loading tests for extendible elements are performed as described in Section 5.2
and 5.3 and need not be repeated if they have already been performed.
5.7.3
Extendible Element Proof Load Test
This test does not apply to low height drawers.
5.7.3.1 Test Setup
a) The unit shall be leveled and the base may be secured to the test platform to prevent
tipping. The method of securing shall not affect the load application.
b) Determine the extendible element of each type (each element construction, suspension
design, etc.) with the largest available clear space (if two or more elements have
identical clear space, select one of the elements for further testing). Uniformly distribute
a proof load per Table 1 in the selected extendible element.
5.7.3.2 Test Procedure
a) Close the extendible element and allow the load to remain for 15 minutes.
b) Open the extendible element, allow the load to remain for 15 minutes, and then remove
the load.
c) Repeat the test as necessary for each element per Section 3.1.5.
5.7.3.3 Acceptance Level
There shall be no sudden and major change in the structural integrity of the product. Loss of
serviceability is acceptable.
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ANSI/BIFMA X5.5-2014
CENTERLINE OF
DISTRIBUTED
LOADS
BENCHING
SYSTEM
178 mm (7 in.)
BENCHING
SYSTEM –
TWO SIDES
WITH
EXTENSIONS
CENTERLINE OF
DISTRIBUTED LOADS
178 mm (7 in.)
Figure 5j - Top View of Distributed Load Tests for Benching Systems
5.8
Benching Systems - Distributed Functional Load and Stability Test (See Figure 5j)
Note: Benching System product stability tests should be tested in worst-case conditions
which will typically be without extensions (if the design allows for such configuration).
Note: Benching Systems shall also be tested to the Concentrated Load Test per Section
5.2.
5.8.1
Test Setup
a) The unit shall be leveled and the base must not be secured to the test platform (to allow
tipping). If the unit requires support from adjacent units (as specified per the
manufacturer’s instructions), all units shall be tested together as a system. Adjustable
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ANSI/BIFMA X5.5-2014
height units shall be adjusted to their highest position. Keyboard support surfaces shall
be loaded in their worst-case position. All secondary surfaces and extendible elements
shall be loaded according to the distributed functional loads per Table 1
Note: Initially load one side only of a two-sided benching unit for testing stability.
b) If work surface suspended extendible elements are available as part of the unit, the
largest two extendible elements (per entire unit) shall be fully opened for the duration of
the test. If the unit contains an interlock that will not allow two extendible elements to be
opened simultaneously, open the largest capacity extendible element.
distributed functional loads from Table 1 to the primary surface(s).
Apply the
Loads shall be
evenly distributed and centered over a line 178 mm (7 in.) in from the edge along the
front (working) edge. For surfaces that are less than 406 mm (16 in.) deep, evenly
distribute the load across the surface.
The loads may be secured to the surface if
necessary to perform this test.
c) If the benching system is a two-sided unit (back-to-back/symmetrical), apply the
functional load to one side of the unit only as a stability test, then complete the functional
load test by adding the required load to the opposite side of the unit.
d) If a two-sided unit has end sections that extend the length of the primary surface, extend
the loads along those surfaces (See Figure 5j).
5.8.2
Test Procedure
Loads shall be allowed to remain for 60 minutes.
5.8.3
Acceptance Level
There shall be no loss of serviceability. The system shall not tip over.
Note: For two-sided units, the functional load applied to one side of the unit shall not cause tip
over; the loads on the entire unit shall cause no loss of serviceability.
5.9
Benching Systems - Distributed Proof Load Test (See Figure 5j)
5.9.1
Test Setup
Perform the setup per Section 5.8.1 except the unit shall be secured (to prevent tipping) for the
Proof Load Test.
Apply the appropriate distributed proof loads per Table 1 to all primary
surfaces and functional loads (distributed for surface loadings) to all secondary surfaces and
extendible elements. The largest two extendible elements shall be fully opened for the duration
of the test. If the unit contains an interlock that will not allow two extendible elements to be
47
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ANSI/BIFMA X5.5-2014
opened simultaneously, open the largest capacity extendible element. If necessary, the closed
extendible elements may be secured to assure they remain closed throughout the test.
5.9.2
Test Procedure
Loads shall be allowed to remain for 15 minutes.
5.9.3
Acceptance Level
There shall be no sudden and major change in the structural integrity of the product. Loss of
serviceability is acceptable.
406 mm (16 in.)
DIAMETER
BAG (SEE
APPENDIX A)
91 kg
(200 lb.)
25 mm (1in.)
Figure 6 - Top Load Ease Cycle Test
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ANSI/BIFMA X5.5-2014
6
Top Load Ease Cycle Test (See Figure 6)
6.1
Purpose of Test
The purpose of this test is to evaluate the durability of the unit to withstand cyclic loading of the
primary surface(s) resulting from a person sitting on the unit.
This test does not apply to:
•
surfaces greater than 965 mm (38 in.) in height, or height adjustable units that cannot
be adjusted to 965 mm (38 in.) or below.
•
shelves or adjustable keyboard surfaces or keyboard tables. (If it is unclear whether the
surface is a primary surface or a shelf, this test applies).
•
units with integral (non-detachable) overhead storage units, hutches, etc. that limit the
useable depth of the primary surface to less than 406 mm (16 in.) or with designs that
interfere with a person’s ability to sit on the surface.
6.2
Test Setup
a) The unit shall be placed on the test platform, leveled, and restrained to prevent
movement. Units with tops that are height adjustable shall be tested at the midpoint of
adjustment but not higher than 965 mm (38 in.).
b) All extendible elements shall be loaded with the functional load per Table 1 and then
closed for the duration of the test.
c) For units with a primary surface with a depth greater than or equal to 457 mm (18 in.)
deep, a 91 kg (200 lb.) weight applied by means of a 406 mm ± 13 mm (16 in. ± 0.5 in.)
diameter bag (See Appendix A) or force applied through a 406 mm ± 13 mm (16 in. ± 0.5
in.) disk shall be positioned with the edge of the bag/disk within 25 mm (1 in.) from the
edge of the surface at the center of the largest unsupported span. For primary surfaces
with a depth less than 457 mm (18 in.), center the bag on the available surface depth.
Flip top tables shall be tested in the worst case position. If the worst case condition
cannot be determined, the weight shall applied to both the front and rear edges of the
surface (tests run individually) to adequately test the latching mechanism.
d) The cycling device shall be set to operate at a rate of 14 ± 6 cycles per minute.
6.3
Test Procedure
a) Prior to performing the test procedure, all extendible elements shall be tested to and
meet the pull force requirements of Section 19.
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ANSI/BIFMA X5.5-2014
b) The bag shall be raised until the entire weight is off the primary surface and then eased
(without impact) onto the primary surface, so that it takes the entire weight without any
support from the cycling device.
c) Repeat Step b) for a total of 10,000 cycles.
d) Remove the bag and perform the pull force test in Section 19.
6.4
Acceptance Level
There shall be no loss of serviceability to the unit.
Before and after the cycling test, the
extendible elements shall meet the pull force test requirements in Section 19.
DROP HEIGHT
PER TABLE 3
Figure 7 - Desk/Table Unit Drop Test
Table 3
Drop Height for Desk/Table Units
Unit Weight
Drop Height
<45 kg (100 lb.)
180 mm (7.1 in.)
45- 90 kg (100-200 lb.)
120 mm (4.7 in.)
>90 – 136 kg (200 - 300 lb.)
60 mm (2.4 in.)
> 136 kg (300 lb.)
n/a
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ANSI/BIFMA X5.5-2014
7
Desk/Table Unit Drop Test (See Figure 7)
This test applies to unganged freestanding category I desk or table products which are less than
or equal to 1829 mm (72 in.) in length. This test does not apply to desk/table units with casters
or to keyboard tables.
7.1
Purpose of Test
The purpose of this test is to determine the ability of a desk/table unit to withstand an impact
force on the legs, column or base.
7.2
Test setup
On desk/table units with adjustable features, set the adjustable features at the midpoint of
adjustment.
7.3
a)
Test procedure
Assure all extendible elements and surfaces are unloaded and determine the weight of
the unloaded desk/table unit to be tested.
b)
The unit shall be placed on a test platform and leveled. If the desk/table unit is equipped
with glides, extend them to their midpoint but not to exceed 13 mm (0.5 in.) from the fully
retracted position.
c)
Raise one end of the long axis of the unloaded unit so that the bottom of the base is
above the test platform at the height given in Table 3 or at the balance point, whichever
is lower.
d)
The end of the unit being tested shall be released and allowed a free fall to the test
platform.
e)
Repeat steps (c) and (d) for the other end of the desk/table unit.
f)
Perform the pull force test in Section 19.
7.4
Acceptance Level
There shall be no loss of serviceability. The extendible elements shall meet the pull force test
requirements in Section 19.
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ANSI/BIFMA X5.5-2014
-
A
B
A
B
B
A
A
B
A
A
GLIDES “NOT CONNECTED”
GLIDES “CONNECTED”
A
A
A
A
A
A
B
B
A
A
A
A
A
A
A
B
A
A
A
A
A
A
A
TABLES WITH LEGS TESTED
AS IF GLIDES ARE “NOT CONNECTED”
B
B
A
A
A
A
CROSS SLAB LEGS TESTED AS SHOWN
ABOVE
B
A
A
A
GLIDES “NOT CONNECTED”
B
B
A
A
T-LEGS TESTED AS SHOWN
ABOVE
Figure 8 - Leg Strength Test – Typical Configurations
52
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ANSI/BIFMA X5.5-2014
A
A
B
A
A
PLACE TABLE ON
ITS TOP DURING
TESTING
C-LEG TABLES TESTED AS SHOWN ABOVE
A
B
53
A
BASE
A
A
TOP
COLUMN TABLES TESTED AS SHOWN ABOVE
Figure 8 Continued - Leg Strength Test – Typical Configurations
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ANSI/BIFMA X5.5-2014
A
B
A
B
A
A
B
A
Surface 2
Surface 1
B
B
54
A
A
A
B
B
A
B
B
A
B
B
A
B
B
B
B
A
A
A
A
Shared
Support
Figure 8 Continued - Leg Strength Test – Typical Configurations
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ANSI/BIFMA X5.5-2014
B
A
GLIDE
ASSEMBLY
FUNCTIONAL
LOADING
REF: ¶ 8.3a
HORIZONTAL
LEG
25 mm (1.0 in.)
ZONE FOR
PROOF FORCE
APPLICATION
VERTICAL
CENTER
COLUMN
CASTER
ASSEMBLY
GLIDE
ASSEMBLY
FUNCTIONAL
LOADING
REF: ¶ 8.3a
FUNCTIONAL
AND PROOF
LOADINGS
25 mm (1.0 in.) ZONE
FOR FUNCTIONAL
FORCE APPLICATION
25 mm (1.0 in.)
ZONE FOR
PROOF FORCE
APPLICATION
PROOF
LOADING
25 mm (1.0 in.)
ZONE FOR
FUNCTIONAL
FORCE
APPLICATION
Figure 8 Continued - Leg Strength Test – Typical Load Application
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ANSI/BIFMA X5.5-2014
8
Leg Strength Test (See Figure 8)
All tests must be performed on a single leg structure. It is not necessary to repeat tests on legs
or support elements of identical construction.
Note: These tests do not apply to
keyboard/laptop tables.
8.1
Purpose of Test
The purpose of this test is to evaluate the ability of desk/table product to withstand handling or
moving.
8.2
Test Setup
a) The unloaded unit shall be positioned on its top, on a test platform, and secured in place.
If the unit has glides, they shall be set at the midpoint of their adjustment range but not
greater than 13 mm (0.5 in.). Adjustable height desk/tables shall be positioned at the
midpoint of their adjustment range. For unit weights greater than 136 kg (300 lbs.) or
those with top design features (shelves, screens, etc.) that do not allow the product to be
placed on its top, it is acceptable to lift the product (either one or both ends) so that the
legs do not contact the floor, then apply the loads in b) at the end of the leg(s).
b) Based on the desk or table Category, calculate the Functional Force "A" as follows (not
to exceed 445 N (100 lbf.)):
Category I:
"A" = 0.5 x (unit weight, kg) x 9.8 + 222 N
["A" = 0.5 x (unit weight, lb.) + 50 lbf.]
Category II and III:
"A" = 0.5 x (unit weight, kg) x 9.8 + 44 N
["A" = 0.5 x (unit weight, lb.) + 10 lbf.]
Note: See Section 2.5 for definitions of categories.
c) Calculate the Functional Force "B" as (0.5 x "A").
d) Calculate the Proof Forces "A" (not to exceed 668 N (150 lbf.)) and "B" as follows:
Proof Force "A" = 1.5 x (Functional Force "A").
Proof Force "B" = 1.5 x (Functional Force "B").
8.3
Functional Test Procedure
a) Attach a loading device to the support member to be loaded. The placement of the
loading device shall be within 25 mm (1 in.) of the end of the support member/glide
assembly that makes contact with the floor. The placement of the loading device shall
be as close to the glide end as possible (may be on the glide stem, but not on the glide
foot itself). For tables with casters, apply the load as close as possible to the end of the
support member but not to the caster assembly.
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ANSI/BIFMA X5.5-2014
b) Individually and separately apply the functional horizontal forces ("A" and "B") as
described in Figure 8.
c) Repeat steps (a) and (b) for each unique type or non-symmetrically placed supporting
member on the desk/table product.
d) If the leg being tested is attached to a desk pedestal, perform the pull force test per
Section 19 on each type and size of extendible element in the attached desk pedestal.
8.4
Functional Test Acceptance Level
No loss of serviceability shall occur as a result of the application of the functional loads. After
application of the functional loads, each type and size extendible element in a leg-attached desk
pedestal shall be tested to and meet the pull force requirements of Section 19. For tilt-top
tables, release of the top latching mechanism during the test is considered a loss of
serviceability.
8.5
Proof Test Procedure
a) Attach a loading device to the support member to be loaded. The placement of the
loading device shall be within 25 mm (1 in.) of the end of the support member. The load
shall not be applied to the glide assembly (including stem, glide foot, etc.) or caster
assembly.
b) Individually and separately apply the horizontal proof forces ("A" and "B") as described in
Figure 8.
c) Repeat steps (a) and (b) for each unique type or non-symmetrically placed supporting
member on the desk/table product.
8.6
Proof Test Acceptance Levels
Application of the proof loads shall cause no sudden and major change in the structural integrity
of the product. Loss of serviceability is acceptable.
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ANSI/BIFMA X5.5-2014
PIVOT POINT
BAG FILLED WITH 22.7
kg (50 lb.) OF STEEL
SHOT OR EQUIVALENT
1282 mm
(50.5 in.)
IMPACT LINE
ON BAG
508 ± 51 mm
(20 ± 2 in. )
203 mm
(8 in.)
64 mm
(2.5 in. )
610 mm
(24 in.)
IMPACT DEVICE
4
5
3
1321 mm
(52 in.)
REAR VIEW
LEFT SIDE
136 kg (300 lb.)
Per 9.2b.
1
6
2
1321 mm
(52 in.)
FRONT VIEW
RIGHT SIDE
Figure 9 – Separation Tests for Tall Desk/Table Products
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ANSI/BIFMA X5.5-2014
9
Separation Tests for Tall Desk/Table Products (See Figure 9)
This test applies to units with attached screen or storage segments that meet the following
criteria: the top segment causes the unit to be greater than 1067 mm (42 in.) in height and
weighs more than 4.5 kg (10 lbs.).
For height adjustable tables, the applicability determination shall be made with the table in its
highest position.
9.1
Purpose of Test
The purpose of this test is to evaluate the ability of tall desk/table product components to resist
separation. If the manufacturer’s instructions indicate that the unit must be placed against the
wall, then no back or front horizontal separation tests are required.
9.2
Test Setup
a) The unit shall be placed on a test platform and leveled.
Note: Height adjustable tables with add-on screen or storage segments should be
adjusted to the worst case impact position.
b) Place a 136 kg. (300 lb.) load in the center of the primary surface of the desk/table unit
to prevent the unit from tipping during the test. The unit shall be blocked to prevent
horizontal movement (sliding of the base). The unit shall not be allowed to tip over as a
result of the impact force. If the unit tips over as a result of the impact, the lower part of
the unit must be secured to the test platform. The method of securing shall not provide
support to the attached component(s).
c) The other elements in the unit shall not be loaded.
9.3
Test Procedure
a) Swing a bag that is 203 mm (8 in.) in diameter, weighing 22 kg (50 lb.) and suspended
on a cable, through a horizontal distance of 609 mm (24 in.).
See Figure 9 for a
description of the bag impact device.
b) Impact an unloaded unit once at each of the following locations in the order given
without repositioning the impacted element. The impact shall be centered along a line
that is 102 mm (4 in.) down from the top edge, but not at a height greater than 1321 mm
(52 in.). If the impact location is centered on an open area (e.g. open book shelf), move
the impact horizontally to the closest impactable location on the unit.
location 1: Impact front of product at its left side,
location 2: Impact front of product at its right side,
location 3: Impact back of product at its left side,
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ANSI/BIFMA X5.5-2014
location 4: Impact back of product at its right side,
location 5: Impact center of product's left side,
location 6: Impact center of product's right side.
See Figure 9 for a description of the impact locations.
9.4
Acceptance Level
The attached or stackable units shall not become totally separated (fall off) from the base unit
as the result of the impact sequence given. Loss of serviceability is acceptable. Cracked or
broken glass is not acceptable.
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ANSI/BIFMA X5.5-2014
LOADED
Figure 10 - Extendible Element Cycle Test
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10
Extendible Element Cycle Test (See Figure 10)
10.1
Purpose of Tests
The purpose of these tests is to ensure that the extendible element (including
suspension system, interlock, in-stop/anti-rebound, detent mechanism, etc.) is durable
and capable of supporting typical loads while it is being opened and closed.
10.2
Cycle Test for Extendible Elements Deeper Than Wide
Note: Low height drawers are tested per Section 10.4
10.2.1 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
Prior to performing the test procedure, the extendible element, if equipped with an
interlock device, shall meet the interlock test requirements of Section 13.
b) The largest extendible element of each construction/mounting type shall be tested. The
extendible element being tested shall be uniformly loaded to the functional load per
Table 1. Load shall be configured per Section 3.9.
c) The cycling device shall be connected to the center of the extendible element’s pull per
Table 2. If equipped with side pulls, the cycling device shall be connected to the center
of either pull.
d) The cycling device shall be set to cause the extendible element to travel within 0 to 6
mm (0 to 0.25 in.) of the closed position to 0 to 6 mm (0 to 0.25 in.) of the fully extended
position and return. This amount of travel shall constitute one cycle. The cycling device
shall not support or add vertical or horizontal loads to the suspensions.
e) The cycling device shall be operated at a rate of 12 ± 4 cycles per minute.
10.2.2 Test Procedure
a) Prior to performing test procedure, the extendible element shall be tested to and meet
the pull force requirements of Section 19.
b) The extendible element shall be subjected to 50,000 cycles.
c) The suspensions shall not be cleaned or lubricated during the test.
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Note: When necessary to compensate for ball-bearing cage creep (ball-bearing slides
only -- see footnote)1 the extendible element should be reset throughout the test by fully
opening and closing the element throughout the test. This interval will depend on a
number of variables. The best indicator of the need to reset is increasing pull forces
(typically when forces exceed 267 N [60 lbs.]) or decreasing extendible element travel
(typically greater than 13 mm [0.5 in.]). The resetting interval shall not be less than 500
cycles.
d) Upon completion of the cycles, perform the Pull Force Test in Section 19.
e) If the extendible element is equipped with an interlock device, perform the Interlock Test
in Section 13.
f)
Repeat the test as necessary for each extendible element type per Section 3.1.5.
10.2.3 Acceptance Level
There shall be no loss of serviceability.
Before and after the cycle test, the extendible
element(s) shall meet the pull force requirements of Section 19. If applicable, after the cycle
test the extendible elements shall meet the interlock test requirements of Section 13.
10.3
Cycle Test for Extendible Elements Wider Than Deep
Note: Low height drawers are tested per Section 10.4.
10.3.1 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
Prior to performing the test procedure, the extendible element, if equipped with an
interlock device, shall meet the interlock test requirements of Section 13.
b) The largest extendible element of each construction/mounting type shall be tested. The
extendible element being tested shall be uniformly loaded to the functional load per
Table 1. The load shall be configured per Section 3.9.
Ball-bearing cage creep is a phenomenon which occurs in ball-bearing or cross-roller bearing slides. In such
slides, there are two parallel cages containing ball bearings and during the slide’s travel the cages may begin to lose
alignment with each other. This “cage creep”, or “cage migration” could increase the friction during travel which
may shorten the expected travel distance for the slide. This shortened travel manifests itself at either end of the
slide’s travel. The travel can typically be “reset” to its original condition by applying a force (or slight impact) to
the slide at its apparent stop. This force, which may be as high as 50-60 lbs., should not to be confused with the
slide opening force and should not be included in the pull force measurement (Section 19 – Pull Force Test). Most
users will not notice a relatively small amount (approx. one-half inch) of creep in the slides and will simply perceive
the shortened travel as the “stop” in the slide’s motion. Many slides will experience “reset” of their travel as the
result of excessive force openings/closings of the drawer during its normal use, or if the travel becomes severely
limited such that access to the drawer space is diminished, users will naturally give the drawer an additional pull (or
slight slam open or closed) to remedy the condition. Creep is considered a normal condition in these slides and
unless excessive, will not affect the product’s overall function or durability.
1
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ANSI/BIFMA X5.5-2014
c) The cycling device shall be connected to the extendible element pull per Table 2.
d) The cycling device shall be set to cause the extendible element to travel within 0 to 6
mm (0 to 0.25 in.) of the closed position to 0 to 6 mm (0 to 0.25 in.) of the fully extended
position and return. This amount of travel shall constitute one cycle. The cycling device
shall not support or add vertical or horizontal loads to the suspensions.
e) The cycling device shall be operated at a rate of 12 ± 4 cycles per minute.
10.3.2 Test Procedure
a) Prior to performing the test procedure, the extendible element shall be tested to and
meet the pull force requirements of Section 19.
b) The extendible element shall be subjected to 50,000 cycles per Table 4.
c) The suspensions shall not be cleaned or lubricated during the test.
Note: When necessary to compensate for ball-bearing cage creep (ball-bearing slides
only see Section 10.2 footnote 1) the extendible element should be reset throughout the
test by fully opening and closing the element throughout the test. This interval will
depend on a number of variables. The best indicator of the need to reset is increasing
pull forces (typically when forces exceed 267 N [60 lbs.]) or decreasing extendible
element travel (typically greater than 13 mm [0.5 in.]). The resetting interval shall not be
less than 500 cycles.
d) Upon completion of the cycles, perform the Pull Force Test in Section 19.
e) If the extendible element is equipped with an interlock device, perform the Interlock Test
in Section 13.
f)
Repeat the test as necessary for each extendible element construction/mounting type
per Section 3.1.5.
Table 4
Cycle Test for Extendible Elements Wider Than Deep
Pull Type
single pull ≤ 33% extendible element width
Cycles per Location
50,000 cycles at center of pull
or ≤ 457 mm [18 in.] in width
(center pulls and single side pulls)
single pull > 33% extendible element width
30,000 cycles at center of pull
and greater than 457 mm [18 in.] in width
10,000 cycles at Right Hand position (see test setup)
(wide width pulls)
10,000 cycles at Left Hand position (see test setup)
Wide pulls are > 33% of extendible element
front and greater than 457 mm [18 in.] in
width
dual pulls
25,000 cycles at center of Right Hand pull
25,000 cycles at center of Left Hand pull
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ANSI/BIFMA X5.5-2014
10.3.3 Acceptance Level
There shall be no loss of serviceability.
Before and after the cycle test, the extendible
element(s) shall meet the pull force requirements of Section 19. If applicable, after the cycle
test the extendible elements shall meet the interlock test requirements of Section 13.
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ANSI/BIFMA X5.5-2014
10.4
Cycle Test for Low Height Drawers
10.4.1 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) Low height drawers shall be uniformly loaded per Table 1. Load shall be configured per
Section 3.9.
c) The cycling device shall be connected to the center of the low height drawer’s pull.
d) The cycling device shall be set to cause the extendible element to travel within 0 to 6
mm (0 to 0.25 in.) of the closed position to 0 to 6 mm (0 to 0.25 in.) of the fully extended
position and return. This amount of travel shall constitute one cycle. The cycling device
shall not support or add vertical or horizontal loads to the suspensions.
e) The cycling device shall be operated at a rate of 12 ± 4 cycles per minute.
10.4.2 Test Procedure
a) Prior to performing test procedure, the low height drawers shall be tested to and meet
the pull force requirements of Section 19.
b) The low height drawers shall be subjected to 10,000 cycles. The suspensions shall not
be cleaned or lubricated during the test.
Note: When necessary to compensate for ball-bearing cage creep (ball-bearing slides
only see Section 10.2 footnote 1) the extendible element should be reset throughout the
test by fully opening and closing the element throughout the test. This interval will
depend on a number of variables. The best indicator of the need to reset is increasing
pull forces (typically when forces exceed 267 N [60 lbs.]) or decreasing extendible
element travel (typically greater than 13 mm [0.5 in.]). The resetting interval shall not be
less than 500 cycles.
c) Upon completion of the cycles, perform the Pull Force Test in Section 19.
10.4.3 Acceptance Level
There shall be no loss of serviceability. Before and after the cycle test, the low height drawer
shall meet the pull force requirements of Section 19.
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ANSI/BIFMA X5.5-2014
38 mm (1.5 in.)
LOADED
80% OF
FULL
TRAVEL
WEIGHT
RESTRAINT DEVICE
Figure 11a – Extendible Element Retention Impact Test
FULLY EXTENDED
POSITION
51 mm (2 in.)
LOADED
WEIGHT
Figure 11b – Extendible Element Retention Durability (Out Stop) Test
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ANSI/BIFMA X5.5-2014
11
Extendible Element Retention Impact and Durability (Out Stop) Tests
(See Figures 11a and 11b)
11.1
Purpose of Test
The purpose of this test is to evaluate the ability of extendible elements to withstand excessive
pullout forces. This test does not apply to elements with load capacity per Table 1 of less than 7
kg (15.4 lb.).
11.2
Test Setup
a) The unit shall be placed on a test platform and leveled. The unit shall be affixed with
obstruction(s) to prevent it from moving.
Obstructions shall not interfere with the
operation of the extendible element(s) being tested.
b) The extendible element being tested shall be uniformly loaded to the functional load per
Table 1. Load shall be configured per Section 3.9.
c) A stranded metallic cable shall be attached to the most rigid point of the vertical
centerline of the extendible element. This may be accomplished by means of a clamp or
similar device that does not affect the test results.
d) The opposite end of the cable shall extend horizontally to a pulley and then downward to
an attached weight. Open the extendible element 38 mm (1.5 in.) and determine the
minimum weight that will cause the extendible element to open to full extension. Add 2.3
kg (5 lb.) of weight. This combined weight shall be used to conduct the test. The weight
shall contact the restraint device after the extendible element reaches 80% of the
extendible element’s total extension. (See Figure 11a).
11.3
Test Procedure
a) Prior to performing the test procedure, the extendible element shall meet the pull force
requirements of Section 19.
b) The extendible element with cable and hanging weight shall be held in a position 38 mm
(1.5 in.) from closed and the extendible element shall be released, permitting the
extendible element to open rapidly, and allowing it to impact the out stops. Repeat this
procedure for a total of 5 times without resetting the air gaps specified in the Loading
Guidelines (Section 3.9). (See Figure 11a).
c) Remove the weight restraint. Move the fully extended extendible element 51 mm (2 in.)
toward the closed position and then release it rapidly, allowing it to impact the out stop.
The distance traveled by the weight shall not be restrained. This procedure shall be
repeated 15,000 cycles at a rate of 14 ± 6 cycles per minute. (See Figure 11b).
68
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ANSI/BIFMA X5.5-2014
Note: When necessary to compensate for ball-bearing cage creep (ball-bearing
slides only see Section 10.2 footnote 1) the extendible element should be reset
throughout the test by fully opening and closing the element throughout the test.
This interval will depend on a number of variables. The best indicator of the
need to reset is increasing pull forces (typically when forces exceed 267 N [60
lbs.]) or decreasing extendible element travel (typically greater than 13 mm [0.5
in.]). The resetting interval shall not be less than 250 cycles.
d) Upon completion of the cycles, perform the Pull Force Test in Section 19.
e) Repeat the test as necessary for each element per Section 3.1.5.
11.4
Acceptance Level
There shall be no loss of serviceability. Before and after performing the Retention Tests, the
extendible element shall meet the pull force requirements of Section 19.
69
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ANSI/BIFMA X5.5-2014
RELEASE POINT
SPRING TRAVEL
LOADED
178 N
(40 lbf.)
MAX.
Figure 12 – Extendible Element Rebound Test
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ANSI/BIFMA X5.5-2014
51 mm (2 in.)
FREE TRAVEL
12
Extendible Element Rebound Test (See Figure 12)
This test does not apply to low height drawers.
12.1 Purpose of Test
The purpose of this test is to evaluate the operational characteristics of a loaded extendible
element to ensure that it will not bounce back out of the unit beyond the acceptance level while
being closed.
12.2 Test Setup
a) The unit shall be placed on a test platform and leveled. The unit shall be affixed with
obstruction(s) to prevent it from moving. Obstructions shall not interfere with the
operation of the extendible element(s) being tested.
b) The extendible element to be tested shall be loaded to the functional load requirements
in Table 1. Load per Section 3.9.3 (Figure 3a or 3b) if extendible element has a bottom.
Load per Section 3.9.4 (Figure 3c or 3d) if extendible element does not have a bottom,
whichever is worst-case (or test to both if the worst-case cannot be determined).
12.3 Test Procedure
a) Prior to performing the test procedure, the extendible element shall be tested to and
meet the pull force requirements of Section 19.
b) A force gauge with a spring rate of 1.75 N/mm (10 lbf./in.) shall be mounted 51 mm (2.0
in.) from the face of the extendible element in its fully closed position per Figure 12.
c) The extendible element shall be opened (through the free travel space) against the force
gauge to a force of 9.8 N per kg (1 lbf./pound) of extendible element load or 178 N (40
lbf.), whichever force is less.
d) Release the extendible element allowing the force applied by the force gauge to close
the extendible element. Record the at-rest position of the extendible element after
rebound.
e) Reset the position of the load to meet the air gap requirements of Section 3.9.
f) Repeat steps (c) through (e) for a total of 5 times.
g) Repeat the test as necessary for each extendible element type per Section 3.1.5.
12.4 Acceptance Level
There shall be no loss of serviceability. The rebound position of the extendible element shall
not exceed 38 mm (1.5 in.) from its closed position after each of the five closings.
71
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ANSI/BIFMA X5.5-2014
TOP MAY BE
RESTRAINED IF
NECESSARY
133 N (30 lb.)
LOADED
Figure 13 – Interlock Strength Test
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ANSI/BIFMA X5.5-2014
13
Interlock Strength Test (See Figure 13)
13.1
Purpose of Test
The purpose of this test is to evaluate the ability of the interlock system to withstand horizontal
forces that may be applied to defeat the interlock (if present).
Note: This test may be conducted in conjunction with the Extendible Element Cycle Test
(Section 10).
13.2
Test Setup
a) The unloaded unit shall be placed on a test platform, leveled, and secured against
movement in any direction.
13.3
Test Procedure
a) An extendible element shall be fully extended, and a horizontal force of 133 N (30 lbf.)
shall be individually applied to the center of the pull area(s) of the remaining extendible
elements, one at a time.
b) Repeat step (a) until all possible combinations of extendible elements have been tested.
c) Load extendible elements with the functional load per Table 1.
d) Repeat steps (a) and (b) until all possible combinations of extendible elements have
been tested.
13.4
Acceptance Level
There shall be no loss of serviceability to the interlock system. The unopened extendible
elements shall not bypass the interlock system.
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ANSI/BIFMA X5.5-2014
SIDE VIEW
LOADED
LOADED
FORCE APPLICATION PER
14.2.3 a & 14.2.3 b
Figure 14a – Force Test for Extendible Element Locks
74
14.2.3 b)
30°
LOADED
14.2.3 a)
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ANSI/BIFMA X5.5-2014
TOP VIEW
14
Lock Tests
14.1 Purpose of Tests
The purpose of these tests is to evaluate the ability of locks to function.
14.2
Force Test for Extendible Element Locks (See Figure 14a)
14.2.1 Purpose of Test
The purpose of these tests is to evaluate the ability of locking mechanism, if present, to provide
a nominal amount of security for the contents.
14.2.2
a)
Test Setup
The unloaded unit shall be placed on a test platform, leveled and secured to prevent it
from moving. The method of securing shall not interfere with the operation of the
extendible element(s) being tested.
b)
Close and lock all extendible elements.
c)
Depending on the pull configuration, set up test to apply force to the pull per Table 2.
14.2.3
a)
Test Procedure
A horizontal outward force of 222 N (50 lbf.) shall be applied once at each of the
applicable locations indicated in the test setup.
b)
An outward and upward force (30 degrees from horizontal) of 222 N (50 lbf.) shall be
applied once at each of the applicable locations indicated in the test setup.
Note: If the extendible element pull design does not allow a user to apply an
outward and upward force, step (b) does not apply.
c)
Repeat steps (a) and (b) for each extendible element.
d)
Unlock the extendible elements.
e)
All extendible elements in the unit shall be uniformly loaded with the functional load per
Table 1. Any uniform loading configuration in Section 3.9 (Figure 3a-3d) is acceptable.
f)
The loaded extendible elements shall be closed and locked.
g)
Repeat procedure (a) through (d).
14.2.4
Acceptance Level
The extendible elements shall remain in the locked position during application of the forces.
There shall be no loss of serviceability of the locking mechanism.
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ANSI/BIFMA X5.5-2014
EXAMPLE WITH HINGED DOOR
EXAMPLE WITH SLIDING DOOR
Figure 14b - Force Test for Door Locks
14.3
Force Test for Door Locks (See Figure 14b)
14.3.1 Purpose of Test
The purpose of these tests is to evaluate the ability of locking mechanism, if present, to provide
a nominal amount of security for the contents.
14.3.2 Test Setup
a) The unit shall be placed on a test platform and leveled. The unit shall be secured to
prevent it from moving. The method of securing shall not interfere with the operation of
the doors being tested.
b) Apply functional distributed loads to all surfaces and extendible elements, if present, per
Table 1.
c) Close and lock all doors.
d) Apply forces to the center of the pull area of the door.
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ANSI/BIFMA X5.5-2014
14.3.3 Test Procedure
a) Apply a force of 222 N (50 lbf.) in the direction of initial door travel.
b) Repeat the test as necessary for each door/lock per Section 3.1.5.
c) Unlock the door.
14.3.4 Acceptance Level
The doors shall remain in the locked position during application of the forces. There shall be no
loss of serviceability of the locking mechanism.
Figure 14c - Locking Mechanism Cycle Test
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ANSI/BIFMA X5.5-2014
14.4
Locking Mechanism Cycle Test (See Figure 14c)
14.4.1 Purpose of Test
The purpose of this test is to evaluate the durability of locking mechanisms.
14.4.2 Test Setup
a) The unit shall be placed on a test platform and leveled. The unit shall be secured against
movement. Unit is unloaded for this test.
b) For keyed locks, insert the key into the lock and attach a cycling device to the head of
the key.
For keyless locks, attach a cycling device to the keypad or unlocking
mechanism. If the design of the locking mechanism requires activation of the extendible
element or door to fully evaluate the mechanism, the extendible element or door may be
opened/closed accordingly during the test. This activation may be done independent of
the key cycling.
c) Set the cycling device to operate at 14 ± 6 cycles per minute.
14.4.3 Test Procedure
a) Cycle the locking mechanism through its full range of motion for 5000 cycles. Each cycle
shall consist of a complete locking and unlocking of the mechanism. For keyed systems,
the key does not need to be removed from the lock mechanism. For keyless systems,
the cycle may require two activations of the keypad – one to lock and one to unlock.
b) Repeat the test on each type of locking mechanism per Section 3.1.5.
14.4.4 Acceptance Level
There shall be no loss of serviceability of the locking mechanism.
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ANSI/BIFMA X5.5-2014
TOP VIEW
305 mm (12 in.) DIAMETER DISK
305 mm
(12 in.)
305 mm
(12 in.)
305 mm
(12 in.)
45 kg (100 lb.)
ON DISK
100% HEIGHT
75%
HEIGHT
50%
HEIGHT
25%
HEIGHT
0% HEIGHT
4th Quartile
3rd Quartile
2nd Quartile
1st Quartile
FRONT VIEW
Figure 15a – Work Surface Vertical Adjustment Test for Motor Driven or Crank Driven
Surfaces
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ANSI/BIFMA X5.5-2014
15
Work Surface Vertical Adjustment Test (See Figures 15a and 15b)
This test does not apply to pin adjustable (incremental adjustment) tables, or to adjustable
keyboard surfaces, or to Category III tables; adjustable keyboard surfaces shall be tested per
Section 16.
15.1
Purpose of Test
The purpose of this test is to evaluate the ability of user adjustable surfaces to be cycled
through their range of adjustment under load.
15.2
Test Setup
15.2.1 Test Setup for Motor-Driven or Crank-Driven Surfaces (Figure 15a):
a)
The unit shall be leveled in the normal operating position and secured to the test
platform.
b)
Apply a test load of 45 kg (100 lb.) through a 305 mm (12 in.) diameter disk with the
center of the disk on a line 305 mm (12 in.) in from the working edge of the surface
or at the midpoint, whichever is nearer the working edge. The side-to-side position
of the test load is described in Test Procedure Section 15.3.1). For crank-adjusted
height adjustment mechanisms, determine the force to adjust the table prior to
testing for the first-quartile cycling. Determine the maximum force throughout one
crank revolution in the raising direction. The cycle rate for electrically driven tables
shall be as recommended by the manufacturer.
When the duty cycle is not
recommended by the manufacturer, the duty cycle shall be three cycles on then off
for the time it takes to run 15 cycles.
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ANSI/BIFMA X5.5-2014
TOP VIEW
305 mm (12 in.) DIAMETER DISK
305 mm
(12 in.)
305 mm
(12 in.)
305 mm
(12 in.)
45 kg (100 lb.)
ON DISK
FRONT VIEW
Figure 15b – Work Surface Vertical Adjustment Test for Counterbalanced Surfaces
15.2.2 Test Setup for Counterbalanced Surfaces (Figure 15b):
a) The unit shall be leveled in the normal operating position and secured to the test
platform.
b) Apply a test load of 45 kg (100 lb.) through a 305 mm (12 in.) diameter disk with the
center of the disk on a line 305 mm (12 in.) in from the working edge of the surface
or at the midpoint, whichever is nearer the working edge. The side-to-side position
of the test load is described in Test Procedure Section 15.3.2).
c) Attach a cycling mechanism to the surface 50 mm (2 in.) from the front edge of the
surface nearest the activation mechanism. If the activation mechanism is not
attached to the surface, attach the test device 50 mm (2 in.) from the front center
edge. For round or irregular surfaces, attach the cycling mechanism 50 mm (2 in.)
in from an edge likely to be used to raise and lower the table and record the chosen
location in the test report.
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ANSI/BIFMA X5.5-2014
15.3
Test Procedure
15.3.1 Test Procedure for Motor-Driven or Crank-Driven Surfaces (Figure 15a):
a) The unit, including any latches or activation mechanisms, shall be cycled for 1,000 cycles
in each quartile of full travel for a total of 4,000 cycles as described below:
Note 1: The test device shall apply the forces necessary to achieve the motion required.
The latching and/or activating mechanisms may be cycled concurrently or independently
for 4000 cycles.
Note 2: Surfaces with electrically motor-driven systems shall be cycled through their
entire range of motion after each quartile of testing. If manufacturer’s instructions require
specific recalibration routines at intervals throught their life, such routines shall be
followed accoring to the manufactures instructions but not greater than at the end of
each quartile testing.
First Quartile:
The unit shall be cycled from the lowest to the 25% position. The
center of the loading disk shall be positioned 305 mm (12 in.) in
from the left edge of the surface.
Second Quartile:
The unit shall be cycled from the 25% to the 50% position. The
center of the loading disk shall be positioned 305 mm (12 in.) in
from the left edge of the surface.
Third Quartile:
The unit shall be cycled from the 50% to the 75% position. The
center of the loading disk shall be positioned 305 mm (12 in.) in
from the right edge of the surface.
Fourth Quartile:
The unit shall be cycled from the 75% up to the highest position.
The center of the loading disk shall be positioned 305 mm (12 in.)
in from the right edge of the surface.
b) One cycle is travel/movement from the lowest position to the highest position within a
quartile and return.
c) The cycle rate shall not exceed 6 cycles per minute or the manufacturer's recommended
rate.
d) For crank-adjusted height adjustment mechanisms, determine the force to adjust the
table after completion of the Fourth Quartile cycling per 15.3.1).
Determine the
maximum force that occurs throughout one complete raising and lowering adjustment.
15.3.2 Test Procedure for Counterbalanced Adjustment Surfaces:
The unit, including any latches or activation mechanisms, shall be cycled for a total of
2,000 cycles throughout its range of motion to within 6 mm (0.25 in.) of the upper and
lower stops. After 2000 cycles, move the weight to 305 mm (12 in.) in from the opposite
working edge of the surface and cycle for an additional 2000 cycles.
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ANSI/BIFMA X5.5-2014
Note 1: The test device shall apply the forces necessary to achieve the motion required.
The latching and/or activating mechanisms may be cycled concurrently or independently
for 4000 cycles.
Note 2: The counterbalance adjustment mechanism may be readjusted to its initial
setting at intervals not to exceed 1000 cycles throughout the test period.
15.4
Acceptance Level
There shall be no loss of serviceability to the unit.
For surfaces with crank-driven height
adjustment mechanisms, the operating force on the handle to adjust the table shall not exceed
50 N (11.2 lbf.) before or after the test.
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ANSI/BIFMA X5.5-2014
EVENLY
DISTRIBUTED
LOAD
Figure 16 - Keyboard Support and Input Device Support Adjustment Tests
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ANSI/BIFMA X5.5-2014
16
Keyboard Support and Input Device Support Adjustment Tests (See Figure 16)
16.1
Purpose of Test
The purpose of this test is to evaluate the ability of adjustable keyboard supports and input
device supports (mouse pads) to be cycled through their range of adjustment under load.
Note: This test applies to Keyboard Tables if they are adjustable.
16.2
Test Setup
a) The surface to which adjustable keyboard support and/or input device support are
attached shall be leveled in the normal operating position and secured.
b) Apply an evenly distributed 4.5 kg (10 lb.) load across the keyboard support surface. If
the device does not have a surface (keyboard attaches directly to the device), a test
surface may be added to simulate a keyboard support surface.
c) Apply an evenly distributed 2.3 kg (5 lb.) load across the input device support surface (if
it is a separate surface from the keyboard support surface).
d) The cycling device shall be set to operate at rate not to exceed 6 cycles per minute.
16.3
Test Procedure
The adjustable keyboard support and input device support shall be subjected to 2500 cycles
each as follows:
a) Horizontal Motion: within 6 mm (0.25 in.) of the end stops.
b) Vertical Motion: within 6 mm (0.25 in.) of the end stops.
c) Swivel Motion: minimum of 120 degrees of adjustment, or to within 6 mm (0.25 in.) of the
end stops over its full range of motion, whichever is less.
Note: Individual adjustment motions may be tested one at a time. The cycling
device shall neither add load nor provide vertical support during horizontal or
swivel adjustment testing, unless the product design requires load to activate the
mechanism in accordance with Section 3.2.
16.4
Acceptance Level
There shall be no loss of serviceability.
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ANSI/BIFMA X5.5-2014
17
Door Tests
Table 5 provides a guide for the appropriate test by door type.
17.1
Purpose of Tests
The purpose of these tests is to evaluate the performance of desk/table unit doors.
Table 5 - Door Test Applicability
Door
Type/Test
Vertically
Hinged
Doors, Bifold and
Multi-fold
Doors
Horizontally
Hinged
Doors
Vertical
Receding
Doors
Horizontal
Receding
Doors
Horizontally
Sliding/ Roll
Front
Tambour
Strength Tests
Cycling wear
& fatigue
tests
Slam Tests
Lock
Tests
17.2 & 17.3
17.6
17.10
14.3 &
14.4
17.14
19
5.3 & 5.4 for
bottom hinged
doors.
n/a for tophinged doors
17.2, 17.3 &
17.4
17.6
17.11
n/a for bottomhinged doors
14.3 &
14.4
17.14
19
17.6,17.7
& 17.9
17.10
14.3 &
14.4
17.14
19
17.5
17.6, 17.8
& 17.9
17.11
14.3 &
14.4
17.14
19
n/a
17.6
17.12 or 17.13
(as applicable)
14.3 &
14.4
17.14
19
n/a
17.6
17.12 or 17.13
(as applicable)
14.3 &
14.4
17.14
19
n/a = not applicable
86
Latch
Test
Pull
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ANSI/BIFMA X5.5-2014
100 mm
(4 in.)
LOAD
(SUSPENDED)
(SEE TABLE 6)
Figure 17a - Strength Test for Vertically Hinged Doors, Bi-fold Doors, and Vertically
Receding Doors
17.2
Strength Test for Vertically Hinged Doors, Bi-fold Doors and Vertically Receding
Doors (See Figure 17a)
Note: this test does not apply to multi-fold (accordion / more than two folds) doors.
17.2.1 Purpose of Test
The purpose of this test is to determine the ability of doors to withstand excessive vertical loads.
17.2.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) Attach the specified load per Table 6 so that its weight is equally distributed on both
sides of the door and its center of gravity acts 100 mm (4 in.) from the edge of the door
opposite the hinge.
Table 6 - Door Height vs. Load
Door height
Load
Less than 46 cm (18 in.).
46 cm (18 in.) and greater
10 kg (22 lb.)
20 kg (44 lb.)
Receding doors should be tested in the fully extended position. For bi-fold doors, attach
the load so that it is applied to the section of the door farthest from the point where the
hinge(s) is (are) attached to the frame in a manner that does not affect the operation of
the door.
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ANSI/BIFMA X5.5-2014
17.2.3 Test Procedure
Cycle the door 10 times from a position 45 degrees from fully closed to a position 10 degrees
from fully open (but not more than 135 degrees) and return. For bi-fold doors, cycle the door
from a position 50 mm (2 in.) from fully closed to a position 50 mm (2 in.) from fully open and
return.
17.2.4 Acceptance Level
There shall be no loss of serviceability to the unit.
100 mm (4 in.)
h/2
h
FORCE = 60 N
(13.5 lbf.)
Figure 17b - Hinge Override Test for Vertically Hinged Doors
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ANSI/BIFMA X5.5-2014
17.3
Hinge Override Test for Vertically Hinged Doors (See Figure 17b)
17.3.1 Purpose of Test
The purpose of this test is to determine the ability of a vertically hinged door to resist forces that
override the limit of the motion allowed by the hinge.
17.3.2 Test Setup
The unit shall be placed on a test platform, leveled, and secured against movement.
17.3.3 Test Procedure
Apply a 60 N (13.5 lbf.) horizontal force perpendicular to the plane of the door on its horizontal
centerline 100 mm (4 in.) from the edge farthest from the hinge, as shown in Figure 17b.
17.3.4 Acceptance Level
There shall be no loss of serviceability to the desk/table unit or its components.
DOOR SETBACK FROM
FIRST POINT OF
ROTATION NECESSARY
TO RESIST 80 N (18 lbf.)
100 mm
(4 in.)
h/2
h
FORCE = 80 N
(18 lbf.)
Figure 17c – Vertical Receding Doors Strength Test
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ANSI/BIFMA X5.5-2014
17.4
Vertical Receding Doors Strength Test (See Figure 17c)
17.4.1 Purpose of Test
The purpose of this test is to determine the ability of a vertical receding door to resist forces that
override the pocket.
17.4.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) Move the door from its stowed position to the first point at which the door will rotate
freely towards its closed position.
c) Place the receding door in a position rearward from this point until the door will resist an
80N (18 lbf.) force without closing.
17.4.3 Test Procedure
a) Apply the 80 N (18 lbf.) horizontal force perpendicular to the plane of the door on its
horizontal centerline 100 mm (4 in.) from the edge farthest from the hinge, as shown in
Figure 17c.
b) Apply the force 10 times.
c) Repeat the test with the force application to the opposite side of the door.
17.4.4 Acceptance Level
There shall be no loss of serviceability to the desk/table unit or its components.
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ANSI/BIFMA X5.5-2014
APPLY FORCE
25 mm (1 in.)
FROM EDGE
80 N (18 lbf.)
POSITION
DOOR
SETBACK
FROM FIRST
POINT OF
ROTATION TO
RESIST 80N
(18 lbf.)
Figure 17d – Horizontal Receding Doors Strength Test
17.5
Horizontal Receding Doors Strength Test (See Figure 17d)
17.5.1 Purpose of Test
The purpose of this test is to determine the ability of a horizontal receding door to resist forces
that override the pocket.
17.5.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) Move the door from its stowed position to the first point at which the door will rotate
freely towards its closed (vertical) position.
Place the receding door in a position
rearward from this point until the door will resist an 80 N (18 lbf.) force without closing.
91
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ANSI/BIFMA X5.5-2014
17.5.3 Test Procedure
a) Apply the 80 N (18 lbf.) downward force perpendicular to the plane of the door on its
horizontal centerline 25 mm (1 in.) from the edge farthest from the hinge, as shown in
Figure 17d.
b) Apply the force 10 times.
17.5.4 Acceptance Level
There shall be no loss of serviceability to the desk/table unit or its components.
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ANSI/BIFMA X5.5-2014
TOP VIEW
VERTICALLY
HINGED DOOR
10° FROM
FULLY OPEN
POSITION
10° FROM FULLY
CLOSED POSITION
MAX. SWING
ANGLE = 90°
FRONT VIEW
HORIZONTALLY
SLIDING DOOR
6 mm (0.25 in.) OF
FULLY CLOSED
6 mm (0.25 in.) OF
FULLY OPEN
Figure 17e - Wear and Fatigue Test for Hinged, Horizontally Sliding, and Tambour Doors
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ANSI/BIFMA X5.5-2014
w
W/6
HINGES
PULL
Example - Pull is
perpendicular to
hinges – Cyclic
device is located at
w/6 (see NOTE in
17.6.2.3)
Figure 17e - Wear and Fatigue Tests for Hinged, Horizontally Sliding and Tambour Doors
(cont.)
17.6
Wear and Fatigue Test for Hinged, Horizontally Sliding, and Tambour Doors
(See Figure 17e)
17.6.1 Purpose of Test
The purpose of this test is to evaluate the resistance of hinged, horizontally sliding, and tambour
doors to wear and fatigue. Horizontally receding doors shall also be tested per Section 17.8.
17.6.2 Test Setup
17.6.2.1
The unit shall be placed on a test platform, leveled, and secured against movement.
17.6.2.2
Latches may be disabled if not tested in conjunction with the Door Latch Test
(Section 17.14). Doors that have the ability to retract may have this feature disabled
during the test.
17.6.2.3
Attach the cycling device to the door at its pull area per Table 2:
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ANSI/BIFMA X5.5-2014
a) Cycle the door from a position 10 degrees from fully closed to a position 10
degrees from fully open and return, not to exceed a maximum swing angle of 90
degrees.
b) For doors that open and close along a track (such as bi-fold or multi-fold doors)
cycle the door from within 6 mm (0.25 in.) of fully closed to within 6 mm (0.25 in.) of
fully open and return.
Note: If the wide pull is on the edge of the door that is perpendicular to the hinge
system, attach the cycling device one-sixth of the door width ± 6 mm (0.25 in.) from
the unsupported edge opposite the hinge and cycle in only this one location as a
single pull.
If a wide pull is available on both edges of the door that are
perpendicular to the hinge system, perform all cycles from the worst attachment
location. (See Figure 17e).
17.6.2.4 The cycling device shall not be used to support or add to the weight of the door during
the test.
Table 7 - Wear and Fatigue Tests for Doors
Pull Type
narrow pull ≤ 33% door width or ≤
457 mm (18 in.) in width
(center pulls and single side pulls)
Cycles @ Location
20,000 cycles at center of pull.
For horizontal doors:
10,000 cycles at center of pull
wide pulls > 33% of door width and 5,000 cycles at one end of the pull (see
greater than 457 mm (18 in.) in width test setup)
5,000 cycles at the opposite end of the pull
(see test setup)
For vertical doors:
wide pulls for hinged and tambour
doors > 33% of door height and
greater than 457 mm [18 in.] in
height
15,000 cycles at center of pull
5,000 cycles at one end of the pull (see
test setup)
dual pulls
10,000 cycles at center of one pull
10,000 cycles at center of the other pull
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ANSI/BIFMA X5.5-2014
17.6.3 Test Procedure
Cycle the door for a total of 20,000 cycles as specified in Table 7. The cyclic rate shall be 12 ±
4 cycles per minute unless the rate is controlled by the door operating mechanisms (pneumatic
dampers, etc.). If that is the case, the rate shall not exceed the natural rate established by the
movement of the mechanism.
17.6.4 Acceptance Level
There shall be no loss of serviceability to the desk/table unit or its components.
Figure 17f - Wear and Fatigue Test for Vertical Receding Doors
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ANSI/BIFMA X5.5-2014
17.7
Wear and Fatigue Test for Vertical Receding Doors (See Figure 17f)
17.7.1 Purpose
The purpose of this test is to evaluate the resistance of vertical receding doors to wear and
fatigue.
17.7.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) The cycling device shall be connected to the leading edge of the door at the center of
the pull area. If the unit to be tested has two or more identical doors, only one of them
needs to be tested.
c) If not testing in conjunction with the Door Latch Test (Section 17.14), latches may be
disabled.
d) Adjust the cycling device to cause the door to travel between 0 to 6 mm (0 to 0.25 in.) of
its fully extended and retracted positions.
e) The cycling device shall not be used to support or add to the weight of the door during
the test.
f)
The cycling device shall be set to operate at 12 ± 4 cycles per minute.
17.7.3 Test Procedure
a) Prior to performing test procedure, the door shall be tested to and meet the pull force
requirements of Section 19.
b) Cycle the door for a total of 10,000 cycles.
c) The suspensions shall not be cleaned or lubricated during the test.
Note: When necessary to compensate for ball-bearing cage creep ((ball-bearing slides
only) – see Section 10.2 footnote 1) the door should be reset throughout the test by fully
opening and closing the element throughout the test. This interval will depend on a
number of variables. The best indicator of the need to reset is increasing pull forces
(typically when forces exceed 267 N [60 lbs.]) or decreasing door travel (typically greater
than 13 mm [0.5 in.]). The resetting interval shall not be less than 500 cycles.
d) Upon completion of the cycles, perform the Pull Force Test in Section 19.
17.7.4 Acceptance Level
Before and after the cycle test, the door shall meet the pull force requirements of Section 19.
The door shall have no loss of serviceability.
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ANSI/BIFMA X5.5-2014
Figure 17g - Wear and Fatigue Test for Horizontal Receding Doors
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ANSI/BIFMA X5.5-2014
17.8
Wear and Fatigue Test for Horizontal Receding Doors (See Figure 17g)
17.8.1 Purpose of Test
The purpose of this test is to evaluate the resistance of horizontal receding doors to wear and
fatigue.
17.8.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) The cycling device shall be connected to the leading edge of the door according to the
attachment points given in Table 2.
c) If not testing in conjunction with the Door Latch Test (Section 17.14), latches may be
disabled.
d) Adjust the cycling device to cause the door to travel between 0 to 6 mm (0 to 0.25 in.) of
its fully extended and retracted positions.
e) The cycling device shall be used to support the door in a horizontal plane during the test.
f)
The cycling device shall be set to operate at 12 ± 4 cycles per minute.
17.8.3 Test Procedure
a) Prior to performing test procedure the door shall be tested to and meet the pull force
requirements of Section 19. The door may be supported in a horizontal plane during the
pull force measurement test.
b) The door shall be cycled according to the requirements of Table 7.
c) The suspensions shall not be cleaned or lubricated during the test.
Note: When necessary to compensate for ball-bearing cage creep ((ball-bearing slides
only) – see Section 10.2 footnote 1) the door should be reset throughout the test by fully
opening and closing the element throughout the test. This interval will depend on a
number of variables. The best indicator of the need to reset is increasing pull forces
(typically when forces exceed 267 N [60 lbf.]) or decreasing door travel (typically greater
than 13 mm [0.5 in.]). The resetting interval shall not be less than 500 cycles.
d) Upon completion of the cycles, perform the Pull Force Test in Section 19.
17.8.4 Acceptance Level
Before and after the cycle test, the door shall meet the pull force requirements of Section 19.
The door shall have no loss of serviceability.
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ANSI/BIFMA X5.5-2014
38 mm (1.5 in.)
WEIGHT
(Per 17.9.2e)
80% OF
FULL
TRAVEL OF
DOOR
WEIGHT
RESTRAINT
Figure 17h – Vertical and Horizontal Receding Door
Out Stop Test – Cyclic Impact
FULLY
EXTENDED
POSITION
51 mm (2 in.)
WEIGHT
Figure 17i – Vertical and Horizontal Receding Door
Out Stop Test – Cyclic Durability
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ANSI/BIFMA X5.5-2014
17.9 Vertical and Horizontal Receding Door Out Stop Test – Cyclic Impact and
Durability (See Figures 17h and 17i)
17.9.1 Purpose of Test
The purpose of this test is to evaluate the ability of vertically or horizontally hinged receding
doors to withstand excessive pullout forces.
17.9.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured to prevent it from
moving. The method of securing shall not interfere with the operation of the door(s)
being tested.
b) A stranded metallic cable shall be attached at the center of the door or door-pull. This
may be accomplished by means of a clamp or similar device that does not affect the test
results.
c) For a horizontally hinged door, the door shall be supported in a horizontal plane during
the test. The method of support shall not impede the horizontal travel of the door.
d) Prior to performing test procedure, the door shall be tested to determine the pull force
per Section 19. For a horizontally hinged door the measurement shall be taken with the
horizontal support device in place. Determine the pull force per Section 19.
e) The opposite end of the stranded metallic cable shall extend horizontally to a pulley and
then downward to an attached weight. Open the door 38 mm (1.5 in.) from its stowed
position. Add the weight equivalent of the pull force determined in d) a 1 kg (2.2 lb.) to
the weight on the cable. This combined weight shall be used to conduct the test. The
weight shall contact the restraint after the door reaches 80% of the door’s total
extension. (See Figure 17h).
17.9.3 Test Procedure – Cyclic Impact Test (See Figure 17h)
The door with stranded metallic cable and hanging weight shall be held 38 mm (1.5 in.) from the
stowed position and then released, permitting it to open rapidly (ensuring the weight is
restrained according to 17.9.2(e) and impact the out stops. (See Figure 17h). Repeat this
procedure for a total of 5 times.
17.9.4 Test Procedure – Cyclic Durability Test (See Figure 17i)
a) Remove the load restraint such that the door will travel to full extension. (See Figure
17i).
b) A device shall be used to move the door 51 mm (2 in.) toward the stowed position and
then to release it rapidly, allowing it to impact the out stop. This procedure shall be
repeated 5,000 cycles at a rate of 10 ± 2 cycles per minute.
c) Upon completion of the cycles, perform the Pull Force Test in Section 19.
17.9.5 Acceptance Level
There shall be no loss of serviceability. Before and after performing the cyclic out stop test, the
extendible element shall meet the pull force requirements of Section 19.
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ANSI/BIFMA X5.5-2014
PULLEY
TOP VIEW
300 mm (12 in.)
or 30° whichever is less
Figure 17j - Slam Closed Test for Vertically Hinged and Vertically Receding Doors
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ANSI/BIFMA X5.5-2014
17.10 Slam Closed Test for Vertically Hinged and Vertically Receding Doors
(See Figure 17j)
17.10.1 Purpose of Test
The purpose of this test is to evaluate the ability of the door to withstand forceful (slam)
closures.
17.10.2 Test Setup
a) The desk/table product shall be placed on a test platform and leveled. The unit shall
be affixed with obstruction(s) to prevent it from moving. Obstructions shall not interfere
with the operation of the door being tested. Doors that have the ability to retract may
have this feature disabled during the test.
b) Load door shelves according to Table 1.
c) A cable shall be attached to the middle of the door’s edge opposite the hinge. The
attachment point shall be as near to the door edge as possible without interfering with
the door closure. This may be accomplished by means of a clamp or similar device.
The device must not affect the test results.
d) The opposite end of the stranded metallic cable shall extend horizontally to a pulley
similar to that shown in Figure 17j. Open the door 30 degrees and then determine the
load that must be applied to the cable assembly to cause the door to close.
e) Open the door through a distance of 300 mm (12 in.) or 30 degrees, whichever is less.
Add 2 kg (4.5 lb.) to the load determined in step (d). This combined load shall be used
to conduct the test. The load shall be restrained after the door reaches a point 10 mm
(0.4 in.) from closure.
17.10.3 Test Procedure
The door with cable and hanging weight shall be held at 300 mm (12 in.) or 30 degrees from the
closed position and then released, permitting the door to close, allowing it to impact the
desk/table product case. Repeat this procedure for a total of 10 times without resetting the
loading gaps.
17.10.4 Acceptance Level
There shall be no loss of serviceability.
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ANSI/BIFMA X5.5-2014
85°- 90°
Figure 17k - Drop Cycle Test for Horizontally Hinged and Horizontally Receding Doors
17.11 Drop Cycle Test for Horizontally Hinged and Horizontally Receding Doors
(See Figure 17k)
17.11.1 Purpose of Test
The purpose of this test is to evaluate the ability of the horizontally hinged door mechanism to
withstand lifting and a free fall drop.
17.11.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) The receding door shall be attached at its center to a mechanism that will pull the door
up to an 85 degree to 90 degree angle from the closed-door position.
c) The mechanism shall release the door, allowing it to fall freely against the unit.
17.11.3 Test Procedure
The door shall be lifted and dropped 200 times at a rate not to exceed 10 cycles per minute.
17.11.4 Acceptance Level
There shall be no loss of serviceability to the desk/table unit or its components.
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ANSI/BIFMA X5.5-2014
FREE FALL
FROM POINT
OF
EQUILIBRIUM
Figure 17L – Slam Test for Doors Which Free Fall Open or Closed
17.12 Slam Test for Doors Which Free Fall Open or Closed (See Figure 17L)
This test applies to doors which slide or roll, either open or closed, under their own weight. (This
test does not apply to doors that are hinged).
17.12.1 Purpose of Test
The purpose of this test is to evaluate the ability of doors that free-fall open and/or closed to
withstand repeated opening/closing impacts.
17.12.2 Test Setup
a)
The unit shall be placed on a test platform, leveled, and secured against movement.
b)
Determine the highest position from which the door will fall (move) freely open/closed
throughout its greatest distance.
Depending on the door’s design, the door may
require testing in both its opening and closing conditions.
17.12.3 Test Procedure
Allow the door to fall open/close freely. Repeat for a total of 50 cycles in each direction (if
applicable).
17.12.4 Acceptance Level
There shall be no loss of serviceability to the desk/table unit or its components.
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ANSI/BIFMA X5.5-2014
WEIGHT
WEIGHT
RESTRAINED
ONCE DOOR
IS WITHIN 10
mm (0.4 in.) OF
ITS STOPS.
17m - Slam Open and Closed Test for Sliding and Roll-Front Doors which Do Not FreeFall
17.13 Slam Open and Closed Test for Doors which Do Not Free Fall (See Figure 17m)
This test applies to doors which slide or roll, open and closed, but not under their own weight.
This test does not apply to doors that are hinged.
17.13.1 Purpose of Test
The purpose of this test is to evaluate the ability of sliding and roll-front doors to function after
repeated impacts due to forceful open/close impacts.
17.13.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) Measure and record the maximum force necessary to slide the door over the first 300
mm (11.8 in.) of travel (not including the force of anti-rebound mechanisms, if
applicable).
c) A cable shall be attached to center of the door's pull area. This may be accomplished
by means of a clamp or similar device. The device must not affect the test results.
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ANSI/BIFMA X5.5-2014
d) The opposite end of the cable shall be attached to a weight that is 2 kg (4.4 lb.) plus
the pull force value that will act to cause the door to open or close.
e) Set up the test device to move the door 300 mm (11.8 in.) from its open or closed
position or to its opposite door stop if less. Place door 10 mm (0.4 in.) from the
doorstop to be impacted and place weight restraint at this position.
17.13.3 Test Procedure
a) Move the door, lifting the weight so the door will travel 300 mm (11.8 in.) or to the
doorstop opposite the one to be impacted, whichever is less.
b) Release the door, permitting the door to move rapidly, allowing it to impact the
doorstop.
c) Repeat steps (a) and (b) for a total of 10 times.
d) Repeat Test Setup and Test Procedure steps (a) through (c) to impact the opposite
door stop on the same door.
17.13.4 Acceptance Level
There shall be no loss of serviceability to the desk/table unit or its components.
17.14
Door Latch Test (No figure)
This test applies to all door types equipped with latches. This test may be run in conjunction
with the door wear and fatigue tests.
17.14.1 Purpose of Test
The purpose of this test is to evaluate the ability of door latches to function.
17.14.2 Test Setup
a) The unit shall be placed on a test platform, leveled, and secured against movement.
b) Attach the door and/or latch to a cycling device.
c) Set the cycling device to operate at 12 ± 4 cycles per minute.
17.14.3 Test Procedure
Operate the latch 20,000 times.
17.14.4 Acceptance Level
There shall be no loss of serviceability to the door or its latching mechanism.
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ANSI/BIFMA X5.5-2014
51 mm
(2 in.)
3.2 mm
(0.125 in.)
MATERIAL: STEEL
8 mm R
(0.313 in.)
OBSTACLE DETAIL
3.2 mm R ± 0.4 mm
(0.125 in. ± 0.016 in.)
TYPICAL ALL SIDES
CENTERLINE OF
TRAVEL
90°
OBSTACLE LAYOUT
LOAD PER 18.2c
CYCLING DEVICE
200-400 mm
(8-15 in.)
200-400 mm
(8-15 in.)
STROKE LENGTH
762 mm +/- 50 mm (30 in. +/- 2 in.)
Figure 18 - Durability Test for Desks and Tables with Casters
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ANSI/BIFMA X5.5-2014
Table 8 – Desk/Table Movement Cycle Test Parameters
Unloaded Unit
Cycles over
Cycles over flat
weight
Less than or equal to
45 kg
(100 lbs.)
Greater than 45 kg
(100 lbs.)
obstacles
surface
2,500
0
100
1,000
18
Durability Test for Desks and Tables with Casters (See Figure 18)
18.1
Purpose of Test
The purpose of this test is to evaluate the ability of desks/tables with casters to withstand
fatigue, stress, and wear caused by moving the product. These tests do not apply to
keyboard/laptop tables.
18.2
a)
Test Setup
Place the desk/table on a smooth, hard surfaced test platform with obstacles. Adjustable
height desk/tables shall be positioned at the midpoint of their adjustment range.
b)
Attach the cycling device no lower than 51 mm (2 in.) from the top surface of the
desk/table, but not any higher than 965 mm (38 in.). The method of attachment shall not
support the unit during the test, except as noted in step (i). The load applied by the
attachment device shall be removed from the amount of unit loading — See step (e).
c)
Apply a 39 kg. (85 lb.) load to the primary surface. The load shall be applied through a
305 mm (12 in.) diameter disk centered on the table.
d)
Apply a distributed functional load per Table 1 to all other surfaces, shelves, and/or
extendible elements.
The loads may be concentrated on the center of the
component(s).
e)
A weight equal to that of the force of the cycling device attachment on the unit shall be
removed from the total weight in the unit.
f)
Adjust the length of stroke to 762 ± 51 mm (30 ± 2 in.) and position the obstacles to
ensure that all casters travel over an obstacle twice for each cycle. (See Figure 18).
g)
After changing direction at each end of the stroke, provide 200 mm to 400 mm (8 in. to
15 in.) of travel before encountering an obstacle. Only two casters will pass over an
obstacle at one time.
h)
Set the cycling device to operate at a rate of 10 ± 2 cycles per minute. One cycle
consists of a forward, then a backward stroke of the machine.
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ANSI/BIFMA X5.5-2014
i)
For desk/table units with caster and glide combinations, the legs without casters may be
raised a maximum of 51 mm (2 in.) above the test platform (supported by the attachment
device) during this test. The casters shall be free to rotate and swivel where applicable.
18.3
Test Procedure
Cycle the desk/table unit for the appropriate number of cycles over a platform with and without
obstructions per Table 8.
18.4
Acceptance Level
There shall be no loss of serviceability to a caster or the desk/table.
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ANSI/BIFMA X5.5-2014
LOADED
FORCE
GAUGE
FORCE
Ref.
Section
19.4
Figure 19 - Pull Force Test
19
Pull Force Test (See Figure 19)
19.1 Purpose of Test
The purpose of this test is to measure the force required to move an extendible element or door
from the fully closed position to the fully extended position.
19.2
Test Setup
a) The desk/table unit shall be placed on a test platform, leveled, and secured against
movement.
b) Extendible elements shall be uniformly loaded with the functional load per Table 1. The
load shall be configured per Section 3.9.3 (Figure 3a or 3b) if extendible elements have
bottoms. The load shall be configured per Section 3.9.4 (Figure 3c or 3d) if extendible
elements do not have bottoms. For extendible elements functioning as a shelf the load
shall be evenly distributed front to back and left to right on the shelf surface.
latching mechanisms shall be disabled.
Any
Doors with storage capability shall not be
loaded for this test.
c) Extendible elements and doors shall be subjected to a one-time break-in period of up to
100 cycles if the extendible element does not initially meet the pull force requirement.
One cycle is defined as travel from 0 to 6 mm (0 to 0.25 in.) of the closed position to 0 to
6 mm (0 to 0.25 in.) of the fully extended/open position and return.
d) Where applicable (typically for ball-bearing suspension) fully open and fully close the
extendible element one time to ensure the suspension is adequately reset before
performing the pull force test.
e) A force gauge or other force measurement device shall be attached to the center of the
pull area. For dual pull and wide pull extendible elements and doors, the force shall be
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ANSI/BIFMA X5.5-2014
measured at the center of each pull (dual pull) and at each end of the wide pulls (greater
than 457 mm [18 in.] in width) at a distance equal to one sixth of the extendible element
width.
19.3
Test Procedure
Open the extendible element or door from its fully closed position to its fully extended position
while measuring the maximum force.
19.4
Acceptance Level
The applied force shall not exceed 50 N (11.2 lbf.).
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CYCLING DEVICE
(Attach device to be
centered within 51
mm (2 in.) of edge)
Figure 20 – Tilting Top Table - Cycle Test
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20
Tilting Top Table -- Cycle Test (See Figure 20)
20.1 Purpose of Test
The purpose of this test is to evaluate the tilt top table pivot mechanism and latching
mechanism(s) (if present) for durability.
20.2
Test Setup
a) The desk/table unit shall be placed on a test platform, leveled, and the table base shall
be restrained from movement.
b) The table top shall be cycled through its range of motion for this test.
c) The table top shall be cycled such that any locking/latching mechanism(s) are engaged
at both ends of travel, as applicable. As an option, the locks/latches and table pivot
mechanisms may be cycled independently, however the test shall cycle all latch ramps
and other characteristics in a manner that simulates in-use conditions and the movement
of the table top shall allow it to touch the stops without impacting or overriding the stops.
If tested independently, all tests must be performed on the same unit. If tested
independently, the table pivot mechanism shall be tested before the lock/latch
mechanism. The upper latch mechanism (if applicable) shall be tested before the lower
latch mechanism.
d) The cycle rate shall not exceed 10 cycles per minute.
20.3
Test Procedure
Move the table top from its in-use position (typically its horizontal or near horizontal position) to
its fully stowed position (typically vertical or near vertical) and then return to its in-use position
for 2,500 cycles. Note: If a cycling device is used, then center the device on the top within 50
mm (2 in.) of the edge.
20.4
Acceptance Level
There shall be no loss of serviceability and the table top shall be able to move throughout its
range of motion.
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ANSI/BIFMA X5.5-2014
Horizontal Force of 133 N
(30 lbf.) to be centered and
25 mm (1 in.) from the
edge
Upward Force of 222 N
(50 lbf.) to be centered
and 25 mm (1 in.) from
the edge
UNIT MAY BE
RESTRAINED IF
NECESSARY
Figure 21 – Tilting Top Table – Latch Strength Test
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21
Tilting Top Table – Latch Strength Test (See Figure 21)
This test applies to tilting top tables with locking/latching mechanisms that hold the top in their
in-use and/or stowed positions.
21.1 Purpose of Test
The purpose of this test is to evaluate the tilt top table lock/latch for strength.
21.2
Test Setup
a) The desk/table unit shall be placed on a test platform, leveled, and the table base shall
be restrained against movement.
b) The table top shall be placed in its in-use (horizontal or near-horizontal) position with its
lock/latch mechanism engaged.
21.3
Test Procedure
21.3.1 Apply an upward force of 222 N (50 lbs.) 25 mm (1 in.) inward and at the center of the
edge of the table top in the direction that would typically move the table top into its stowed
position.
21.3.2 Move the tabletop to its stowed (vertical or most upright) position.
With lock/latch
engaged, apply a horizontal force of 133 N (30 lbs.) at the center of the edge of the table top in
the direction that would typically move the table top into its in-use position.
21.4
Acceptance Level
The lock/latch shall retain the top in its test position throughout the application of the test
force(s). There shall be no loss of serviceability to the unit.
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Test Weight per
Manufacturer’s Rated
Load (or per default as
listed in Section 22)
Test Weight not to exceed
76 mm (3 inches) in
thickness
Figure 22 – Monitor Arm – Strength Test
22
Monitor Arm Strength Test (See Figure 22)
22.1
Purpose of Test
The purpose of this test is to evaluate the monitor arm for strength. This test does not apply to
freestanding monitor stands.
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22.2
Test Setup
a) The monitor arm shall be attached to the desk/table unit (or test fixture) in accordance
with the manufacturer’s instructions.
b) Extend the monitor arm to its most horizontally extended (worst case) position.
c) A test weight simulating the weight of a monitor shall be placed on the monitor arm in
accordance with the manufacturer’s maximum load rating. The simulated weight shall
not exceed 76 mm (3 in.) in thickness. If no manufacturer’s load rating is provided, apply
a test weight of 20 kg (44 lbs.). The load may be attached to the monitor arm with a test
fixture that simulates an actual monitor, or may be applied by means of a weight
suspended from the monitor attachment mechanism.
22.3
Test Procedure
Apply the test weight for 60 minutes.
22.4
Acceptance Level
There shall be no loss of serviceability.
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Top View
Side View
Figure 23a – Monitor Arm – Cycle Test Rotational Movement at Base
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Top View
Side View
Figure 23b – Monitor Arm – Cycle Test Rotational Movement at Linkage/Knuckle
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Figure 23c – Monitor Arm – Cycle Test Vertical (Up/Down)
Fore and Aft Motion
Figure 23d – Monitor Arm – Cycle Test Horizontal
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23
Monitor Arm Cycle Test (See Figures 23a – 23d)
23.1
Purpose of Test
The purpose of this test is to evaluate the monitor arm for durability. This test applies to the
user adjustable movements of monitor arms. This test does not apply to freestanding monitor
stands.
23.2
Test Setup
a) The monitor arm shall be attached to the desk/table unit (or test fixture) in accordance
with the manufacturer’s instructions.
b) A test weight simulating the weight of a monitor shall be placed on the monitor arm in
accordance with the manufacturer’s maximum load rating. If no manufacturer’s load
rating is provided, apply a test weight of 20 kg (44 lbs.). The load may be attached to the
monitor arm with a test fixture that simulates an actual monitor, or may be applied by
means of a weight suspended from the monitor attachment mechanism. The simulated
weight shall not exceed 76 mm (3 in.) in thickness.
c) Fully release any clamping or locking devices and cycle the monitor arm through its
entire range of motion in each of the following applicable directions of movement;
rotational and/or side-to-side (See Figures 23a and 23b), vertical (See Figure 23c), and
horizontal (See Figure 23d), in a manner that simulates in-use conditions. Each motion
of the movements may be tested simultaneously (sequentially) or independently.
If
tested independently, all tests must be performed on the same unit. The following set up
conditions shall be followed:
•
for rotational movement the cycle motion shall be 90-95% of the adjustment
range (See Figures 23a and 23b).
•
for linear movement the cyclic motion shall be 90-95% of the adjustment range
(See Figures 23c and 23d).
•
for linkages that may swivel in either direction (jackknifing mechanisms) the arm
shall be tested such that 50% of the total required cycles are performed in each
direction.
Products with tensioning mechanisms shall be set initially and may be reset at
intervals not less than 500 cycles.
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23.3
Test Procedure
Move the monitor arm through its entire range of motion(s) for 2,500 cycles. A cycle shall
consist of the 90-95% of the adjustment range including back to forth, up to down, side to side,
or whatever the range may entail. A cycle is rotation or movement in one direction from one
end of the range to the other. Rotation or movement in the opposite direction is another cycle.
If clamping or clutch-type mechanisms have been loosened prior to testing, reapply (tighten)
them after cycling. (Due to product variations, no cycle rate is given and is determined by the
manufacturer. Consider a suggested cycle rate not to exceed 6 cycles per minute.)
23.4
Acceptance Level
There shall be no loss of serviceability. Clamping or clutch mechanisms shall remain functional.
Tensioning mechanisms must be capable of being reset to hold the monitor in its pretest
position.
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TOP VIEW
Test Forces applied in
locations per Section 24
SIDE VIEW
Test Weight per
Manufacturer’s Rated Load
(or per default as listed in
Section 24)
Figure 24 – Monitor Arm Adaptor Dislodgement Test
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ANSI/BIFMA X5.5-2014
24
Monitor Arm Adapter Dislodgement Test (See Figure 24)
24.1
Purpose of Test
The purpose of this test is to evaluate the monitor arm for resistance to dislodgement of the
monitor adapter/attachment device from the monitor arm structure. This test does not apply to
monitor arms where the monitor is attached directly to the monitor arm. This test does not apply
to freestanding monitor stands.
24.2
Test Setup
a) The monitor arm shall be attached to the desk/table unit (or test fixture) in accordance
with the manufacturer’s instructions. Some or all movements of the monitor arm may
need to be restricted in order to conduct this test.
b) A mock up monitor (test fixture) of the manufacturer’s maximum rated load and size shall
be attached to the monitor arm adapter in a manner that simulates the manufacturer’s
recommended attachment method. If no load or size is specified, the mock-up monitor
shall weigh 20 kg (44 lbs) and have a diagonal dimension of 762 mm (30 in.) with a 16:9
ratio of length to height and a depth no greater than 76 mm (3 in.).
24.3
Test Procedure
Apply a horizontal force of 40 N (9 lbf.) in three directions. Apply each force independently in
the following locations:
a) A forward (away from the user) direction at a location that is 25 mm (1 in.) inwards and
downwards from the top corner of the mock up monitor/test fixture (See Figure 24).
b) A rearward location (from behind the monitor in a direction towards the user) at a
location that is 25 mm (1 in.) inwards and downwards from the top corner of the mock up
monitor/test fixture.
c) To the either side of the monitor at a location that is 25 mm (1 in.) downwards from the
top corner of the mock up monitor/test fixture.
24.4
Acceptance Level
There shall be no loss of serviceability.
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ANSI/BIFMA X5.5-2014
Appendix A -- Impact Test Bag Construction
Example: 406 mm (16 in.) diameter bag
Section A-A
Height =
406 mm
(16 in.)
A
A
BAG DIAMETER =
406 mm +/- 13mm
(16 in. +/- 0.5 in.)
Bag to contain a sufficient quantity of media to bring the bag to the specified load. Media may
be shot, slugs, punches, sand, etc.
Media may be contained within smaller individual
bags/compartments. Media may not be a singular solid material (e.g. single steel or concrete
mass).
Note: For health and environmental reasons, lead shot is not recommended. Other fixtures or
media are acceptable if they provide an equivalent impact.
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Appendix A (Continued) - Impact Test Bag -- Typical Construction
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Appendix A (Continued) -- Impact Test Bag -- Typical Construction
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Appendix A (Continued) -- Impact Test Bag -- Typical Construction
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Appendix A (Continued) -- Impact Test Bag -- Typical Construction
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Test Bag Handling Suggestions:
Support fixtures for lifting and attaching the bag to test devices may be used to help maintain
the shape of the bag and provide improved consistency, depending on the media chosen.
Examples of support fixtures are shown below:
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Appendix A continued
Note: Other designs may be used to help maintain the shape of the bag and provide improved
consistency.
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Appendix B – Guidance for Stability of Desk/Table Mounted Monitor Arms
Users of Monitors affixed to monitor arms that are fastened to a desk or table should be careful
not to use ‘large/heavyweight’ monitors on ‘small/lightweight’ desks or tables. A monitor that is
too large/heavyweight may cause a small/lightweight desk or table to tip over.
------------END OF DOCUMENT ANSI/BIFMA
133
X5.5 – 2014------------
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