SECTION 123XX - WOOD LABORATORY CASEWORK AND EQUIPMENT
SHELDON STANDARD SERIES
PART 1 GENERAL
1.01
RELATED DOCUMENTS
Drawings and general provisions of contract, including General and Supplementary Conditions
and Division-1 specification sections, apply to work of this section.
1.02
1.03
1.04
QUALIFICATIONS
A.
All laboratory equipment covered by this specification and accompanying
drawings shall be manufactured or furnished by one manufacturer and supplied
under their direction to eliminate any divided responsibility.
B.
Owner reserves the right to reject any or all bids and award contract to other than
lowest bidder if, in their opinion, such action would insure better performance and
a higher level of function, quality, and value.
QUALITY ASSURANCE
A.
Products of Sheldon Laboratory Systems are specified as a basis of design,
quality, and layout. The specifications and drawings define and show the
essential minimum requirements. Where a definite material or manufacturer is
specified, it is not the intent to discriminate against any product of another
manufacturer. However, it is the intent of this specification to provide for the
Owner a quality and educationally functional installation of laboratory equipment
and casework, and to exclude inadequate or inferior laboratory equipment and
casework.
B.
Minimum standards are set forth herein to comply with this intent. Laboratory
equipment and casework manufacturer(s)/bidders are cautioned that ONLY
EQUIPMENT MEETING THE STANDARDS SET FORTH IN THE
SPECIFICATION WILL BE ACCEPTABLE.
C.
To insure that all bidders are bidding equal equipment, all requests for changes,
modifications, substitutions, approvals, etc., will be set forth in an addendum. Any
item not receiving prior approval will rightfully be construed as based on supplying
the educational function, essential requirements, design, construction, and
materials as called for in this specification. Bidders shall not rely upon approvals
made in any other manner.
D.
Cabinet construction and associated components are approved and listed with
SEFA to SEFA 8-2010 4TH Edition, Version 1.0 Specification.
WORK BY LABORATORY EQUIPMENT CONTRACTOR
1
1.05
A.
Furnishing, delivering to the building, uncrating, setting in place, leveling, and
anchoring all casework and equipment listed in the specifications or equipment
schedule and/or shown on the drawings.
B.
Furnishing plumbing fixtures and fittings only as defined in the specifications,
complete with tank nipples and lock nuts for mounting fixtures and fittings on tops
or curbs. Installation will be by other respective trades as a part of their final
connections.
C.
Furnishing electrical service fixtures directly attached to the casework or
equipment as called for in the specifications, equipment list and/or shown on the
drawings. Fixtures supplied only, not attached or assembled. Installation will be
by other respective trades as a part of their final connections.
D.
Furnishing sink bowls and cup sinks, complete with required overflows, plugs and
strainers as called for in the specifications, equipment list and/or shown on the
drawings. Sinks supplied, not attached or assembled. Installation will be by other
respective trades as a part of their final connections.
E.
Furnishing and installing filler panels and scribes as required for finished
installation.
F.
Removal of all debris, dirt, and rubbish accumulated as a result of installation of
this equipment, leaving premises broom clean and orderly.
WORK BY OTHERS
A.
Furnishing, installing, and connecting of all service lines, drain lines, piping, and
conduit within equipment and fume hoods, in service turrets or tunnels, through,
under, or along the backs of working surfaces, and in reagent racks above
counter tops as required by specifications and/or drawings.
B.
Furnishing, installing, and connecting all ductwork from fume hoods to blowers
and from blowers to final point of discharge to atmosphere. Blower furnished by
mechanical contractor.
C.
Furnishing, installing, and connecting of all vents, revents, steam fittings and
special plumbing fixtures or piping to meet local codes, even though not
specifically called for in the specifications and/or shown on the drawings.
D.
Furnishing and installation of all rigid or flexible conduit, wire, pulling of wire,
fittings, special electrical equipment and accessories including boxes,
receptacles; flush plates sent loose. Included are those in box curbs or tops
which are not installed at Equipment Contractor's plant due to inconvenience of
shipping. All shall be in accordance with local codes even though not specifically
called for in specifications and/or shown on drawings. Wiring and connection of
switch to fume hood lights and blower motors.
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1.06
E.
Providing all framing and reinforcements of walls, floors, and ceilings necessary
to adequately support the equipment and all bucks and plaster grounds required
for proper installation of equipment.
F.
Furnishing any miscellaneous materials generally classified as maintenance or
supply items.
G.
Providing protection and security by General Contractor during and after
laboratory equipment installation.
H.
Hoisting or elevator service by General Contractor at no charge to Equipment
Contractor.
DRAWINGS
This contractor shall furnish to the Owner, five (5) sets of shop drawings showing in detail
all proposed materials, equipment, and scope of work.
1.07
MAINTENANCE AND OPERATING INSTRUCTIONS
This contractor shall include in its bid, the cost of providing a technically qualified
representative for a period of one (1) day to thoroughly instruct the Owner's personnel in
correct procedures of operating and maintaining this contract.
1.08
GUARANTEE
This contractor shall guarantee all materials and workmanship of equipment provided on
this contract for a period of one (1) year from the date of final acceptance. Any defective
materials or faulty workmanship occurring within that time shall be replaced or corrected
without charge.
PART 2 PRODUCTS
2.01 MATERIALS (WOOD CASEWORK)
A.
General
1.
B.
All casework shall be of modern design and shall be constructed in
accordance with the best woodworking practices of the cabinet making
industry. First class quality casework shall be established by use of
machinery, tools, fixtures, and skilled workmanship. Tolerances for
components per various equipment used to manufacture components.
Definitions
1.
The following definitions apply to wood laboratory casework units.
Casework unit size and type are indicated on the drawings and/or
equipment list.
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C.
a.
Exposed portions of casework include surfaces visible when doors
and drawers are closed. Bottoms of cases more than 4'-0" above
floor shall be considered as exposed. Visible members in open
cases or behind glass doors also shall be considered as exposed
portions.
b.
Unexposed portions of casework shall include sleepers, web
frames, dust panels, and other surfaces not usually visible after
completed installation.
c.
Semi exposed portions of casework shall include interior spaces
only exposed to view when doors and drawers are open.
Materials
Materials used for construction of cabinets, cases and tables as specified herein
shall meet or exceed the minimum standards as specified.
1.
Wood species required shall be: Maple
2.
All wood materials used shall meet applicable standards for CARB
2.
3.
Exposed Woods
4.
5.
a.
Solid Wood: Flat sawn lumber, clear and free from
defects. All lumber thoroughly and properly air dried to a
uniform moisture content of 4%-6% by weight, tempered to
7%-8% during fabrication.
b.
Plywood: Plywood shall be thickness as specified herein,
faced with surface veneer secured with highly waterresistant glue. Wood veneer shall be plain sliced. Wood
veneer shall be "Premium Grade A", face smooth, tight cut
and full length of exposed face.
Unexposed Woods
a.
Solid Lumber: Dry, sound, selected to eliminate
appearance defects. Any species of hardwood.
b.
Plywood: Uniform hardwood face veneer.
Hardboard: (Tempered) Shall be 1/4" thick. All hardboard shall be
composed of wood fibers and resinous binder compressed under
heat and pressure.
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D.
Construction - General
1.
Cabinets, cases, tables, and other units shall be of the size and
configuration indicated on the drawings and/or equipment list. General
construction is bored, doweled, dadoed and glued.
2.
Base Cabinet Construction
3.
a.
Cabinet end panels shall be 3/4" thick, 7-ply, hardwood plywood.
b.
Vertical partitions (as required) shall be 3/4" thick, 7-ply, hardwood
plywood.
c.
Exposed edges of end panels, bottoms, partitions, shelves shall
be edged with 3mm solid wood banding.
d.
Two Piece Top Frame: 1" X 3" solid hardwood front rail, back
grooved to receive cross rails, and similar 1” X 3” solid hardwood
back rail, both set flush with cabinet ends; doweled and glued into
place.
e.
(Optional) Cross rails are 1" X 2-1/4" solid hardwood fully housed
into front and back rails with mortised and tenoned joints to form a
full four-sided top frame.
f.
Intermediate rails are provided on all base cabinets between
drawer/drawer configurations and drawer/door configurations.
Rails are 1” X 3” solid hardwood rails, back grooved to receive
security panels (as required). Rails shall be set flush with cabinet
ends; doweled and glued into place.
g.
Cabinet bottoms shall be 3/4”, 7 -ply hardwood plywood. Set flush
with cabinet ends; doweled and glued into place.
h.
Security panel (as required) is 1/4" thick hardboard. Panel is
provided between drawers/drawers and drawers/doors base
cabinets only when specified.
Wall Cabinet Construction
a.
Cabinet end panels shall be 3/4" thick, 7-ply, hardwood plywood.
b.
Vertical partitions (as required) shall be 3/4" thick, 7-ply, hardwood
plywood.
c.
Exposed edges of end panels, top and bottom panels, partitions,
shelves shall be edged with 3mm solid wood banding.
d.
Cabinet tops and bottoms shall be 1”, 11 -ply hardwood plywood.
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Set flush with cabinet ends; doweled and glued into place.
4.
5.
e.
Back panel shall be ¼” hardwood plywood when cabinet interior is
exposed and ¼” hardboard when semi exposed.
f.
Top and bottom back rail shall be 1/2” hardwood plywood.
g.
Each wall case will be provided two heavy duty steel angled
mounting brackets screwed to the interior of the cabinet end
panels and shall be used for mounting cabinets to wall structure.
Tall Cabinet Construction
a.
Cabinet end panels shall be 3/4" thick, 7-ply, hardwood plywood.
b.
Vertical partitions (as required) shall be 3/4" thick, 7-ply, hardwood
plywood.
c.
Exposed edges of end panels, top and bottom panels, partitions,
shelves shall be edged with 3mm solid wood banding.
d.
Intermediate rails (as required) or back rails are 1” X 3” solid
hardwood rails, back grooved to receive security panels as
required, set flush with cabinet ends; doweled and glued into
place.
e.
Cabinet bottoms shall be 3/4”, 7 -ply hardwood plywood. Set flush
with cabinet ends; doweled and glued into place.
f.
Cabinet tops shall be 1”, 11 -ply hardwood plywood. Set flush with
cabinet ends; doweled and glued into place.
g.
Top Back Rail and Center Back Rail shall be 1" X 3" solid
hardwood doweled and glued into end panels. Bottom Back Rail
shall be ¾” X 4” hardwood plywood doweled and glued into end
panels.
h.
Back panel shall be ¼” hardwood plywood when cabinet interior is
exposed and ¼” hardboard when semi exposed.
Drawers – Classic Series, Square Edge partial Overlay, Wood Edge
Band, Vertical Match Grained Front(s) cut from one panel
a.
Classic Front: Shall be 3/4" thick 45 lb. industrial grade particle
board core, 5 ply panel with both faces surfaced with hardwood
veneer. Edges banded with 3 mm solid hardwood with a slight
radius. Grain is vertically matched cut from one panel as a set
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b.
6.
Doors - Base and Wall Cabinets - Classic Series, Square Edge partial
Overlay, Wood Edge Band, Vertical Match Grained Front(s) cut from one
panel
a.
7.
10.
Shall be 3/4" X 3” solid hardwood rails, doweled and glued
together; sanded for smooth fit and edge detailed to match door
selection.
Cabinet Backs
a.
Exposed interior - 1/4" thick hardwood plywood
b.
Unexposed interior - 1/4" thick hardboard (Removable at sink
cabinets)
Cabinet Shelves
a.
E.
Estate front: Shall be 3/4" thick constructed door with 45 lb
industrial grade core, 3/4" X 7/8” solid hardwood banding, Overlaid
with 1/8” solid hardwood veneer, radius all edges. Grain direction
is vertical.
Doors - Framed Glass
a.
9.
Estate front: Shall be 3/4" thick constructed door with 45 lb
industrial grade core, 3/4" X 7/8” solid hardwood banding, Overlaid
with 1/8” solid hardwood veneer, radius all edges. Grain direction
is vertical.
Doors - Tall Cabinets - Classic Series, Square Edge partial Overlay,
Wood Edge Band, Vertical Match Grained Front(s) cut from one panel
a.
8.
Drawer Box Body: Back, sides, and front shall be 1/2” thick 9-ply
birch plywood, chuck and bore joinery with 1 /4” thick hardboard
white melamine bottom. Set in groove all around, pinned and
glued, clear chemical resistant finish with top edges finished.
Shelves in cabinets shall be 1” thick 11-ply hardwood plywood.
Front edge banded with 3mm solid hardwood. Shelves are
adjustable on 1-1/4" centers, supported by four (4) nickel-plated
steel pin and socket type shelf clips. Partial depth shelves are
standard.
Laboratory Grade Wood Finish
1.
Exposed wood parts of all laboratory equipment shall be finished SEFA
approved finish. Standard colors or clear finish available
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2.
All parts shall be carefully sanded and buffed in preparation for the
finishing processes. The first coat shall be a stain and sealer coat of
synthetic resin. The product is then cured at elevated temperatures. After
the first sealer coat, the product shall be sanded, wiped clean and then
two (2) more coats of an acid resisting synthetic resin shall be applied and
cured at elevated temperatures.
a.
3.
Cabinet Finish Chemical Test and Evaluation
a.
2.02
Interior of cabinets with solid doors receive one (1) sealer coat and
one (1) coat of an acid resisting synthetic resin.
Chemical Test and Evaluation shall be in accordance with SEFA8-W-2010. Independent test reports available upon request.
CASEWORK HARDWARE AND ACCESSORIES
A.
Hinges: Institutional type, ground tip, five-knuckle, with pins of not less than .177"
in diameter and leaves of not less than .095" thick. Hinges shall be wrought steel
with chemical resistant epoxy powder coating. Two (2) hinges shall be provided
on doors under 36" in height and three (3) hinges for doors 36" and over.
B.
Pulls: Solid metal, wire type, 4" long mounted with two (2) screws fastened from
back. Pulls shall be chemical resistant epoxy powder coated to match hinges.
Provide two (2) pulls for drawers over 24" wide.
C.
Drawer Slide System: ¾ extension drawer runners shall be powder coated, cold
roll steel, featuring a captive roller system with in and out stop and out position
keeper. Drawer runners shall be side and bottom mount with 100 lb. load rating
per BHMA, BIFMA test procedure.
D.
Door Catches: Provide two (2), top and bottom. Dual, self-aligning magnetic
catch.
E.
Elbow Catches: Brass with latch held by coiled compressing spring. Catch
plates of 16 gauge plated steel.
F.
Slam Latch: Supplied on tall cases with double doors where locks are specified,
4-5/8" bevel slide bolt with 2-1/4 lb./in. actuated spring.
G.
Leg Shoes: Molded vinyl or rubber, black, coved bottom type to match radius of
base molding.
H.
Glass: Type I, Class I, float glass.
I.
Locks: Lock is laboratory grade, cylinder cam lock, with 5-disc tumbler
mechanism, and a dull chrome-plated face. Tumblers and keys are brass, while
plug and cylinder are die cast zinc alloy. There are 500 key changes standard.
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Locks are keyed differently, master-keyed and furnished with 2 keys per lock.
Lock is equipped with RemovaCoreTM keying control. If needed, with the use of
a control key, the key core of the lock assembly can be removed and a new key
core inserted, changing the entire locking system in a matter of minutes. Locks
are provided only when specifically shown on drawings, equipment list, or
indicated by catalog number.
2.03
J.
Sliding Doors - (Frameless Glass) - .218" thick float plate glass with seamed
edges. Operate on metal track applied at top and bottom front horizontal rails of
cabinet. Doors easily removable for cleaning. Locks, when indicated, showcase
type.
K.
Sliding Doors - (Framed Glass/Wood Tall Cases) - operate in overhead metal
track with ball bearing rollers and nylon wheels. Plastic tracks applied to bottom
and sized to allow cleaning space at each end. Locks, when indicated, plunger
bolt type.
L.
Sliding Doors - (Framed Glass/Wood Wall Cases) - operate in overhead plastic
track. Plastic tracks applied to bottom and sized to allow cleaning space at each
end. Locks, when indicated, plunger bolt type.
M.
Tote Tray - High impact plastic tray with high gloss.
TOPS, SINKS, AND ACCESSORIES
A.
General
1.
Comply with physical and chemical resistance requirements for materials
for tops and sinks as specified herein.
2.
Tops: Provide smooth, clean, exposed tops and edges, in uniform plane
free of defects. Splash and curbs shall be 4" high x 1" thick, unless
otherwise noted on the drawings, and shall be located at the backs of all
counter tops.
a.
B.
Top sizes: Furnish tops in maximum practicable lengths, in
configuration indicated on the drawings.
Counter Tops
1.
Shelresin (epoxy resin) - especially blended to produce a high chemical
resistant material. Tops shall be one inch (1") thick. Physical and
mechanical properties:
Tensile strength, psi
Compressive strength, psi
Flexural strength, psi
Hardness, Rockwell "M"
Density, gr/cc
9
10,700 PSI
30,600 PSI
12,800 PSI
105
2.03 G/CC
C.
D.
2.
Glass fiber reinforced structural polyester - acid resistant surface coating,
semi-gloss sheen, to resist moderate chemicals, solvents, biological
stains, heat and moisture. Non-burning when submitted to the ASTM D635 test. POLYESTER OR PLASTIC NOT MEETING THIS TEST FOR
NON-BURNING WILL NOT BE ACCEPTABLE.
3.
Plastic laminate top - thermosetting plastic laminate sheet 1/16" thick,
cemented to underlayment with a highly water resistant resin adhesive.
Underlayment shall have smooth surface, free of wood grain or other
defects that would "telegraph" through to the top surface. Top shall be
edge banded with same material as top, set under edge of top and
cemented with a highly water resistant adhesive. Top thickness to be 11/4" unless noted otherwise.
Sinks, Troughs, and Service Turrets
1.
Shelresin (epoxy resin) - one-piece construction. Sinks to be “drop-in”
style with inside corners and bottoms coved for easy cleaning. Epoxy
sinks furnished with polypropylene sink outlets.
2.
Glass fiber reinforced structural polyester - one-piece formed construction
3/4" radius on all exterior surfaces. Acid resistant surface coating, semigloss sheen, to resist moderate chemicals, solvents, biological stains,
heat and moisture. Non-burning when submitted to the ASTM D-635 test.
(Bidder must furnish notarized certificate that polyester or plastic material
furnished meets this test.)
Laboratory Service Fixtures and Fittings
1.
Vandal-Resistant Fittings.
Provide Vandal- Resistant Faucets and Fittings specifically designed to
prevent student damage and provide extra protection from student
vandalism.
All Service Fittings shall conform to SEFA 7-2010, Recommended
Practices for Laboratory Service Fittings, Para 14.0 - 14.3 for Vandal
Resistant Fittings.
Each fitting shall resist turning, bending, breakage, and unintended
disassembly through acts of vandalism or physical abuse.
Vandal- Resistant Construction features shall include:
All threaded connections that will not require field service shall be secured
with a suitable adhesive so as to be non-removable.
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All Goosenecks and spouts shall be constructed of heavy duty pipe or
tubing that is sufficient to resist bending and breakage.
Faucet bodies and turret bases shall be provided with locking pins or
other means to prevent the fixture from being turned on the work surface.
Outlet fittings (such as aerators or serrated hose ends) shall either be of
Vandal-Resistant design or shall be secured in place with an adhesive.
Index buttons shall be tamperproof.
Water fittings provided with serrated hose ends shall be furnished with
vacuum breakers to prevent contamination of the potable water system
through backflow or back-siphonage.
Fittings for laboratory gases shall be furnished with ball valves.
Water fittings shall have valve packing nuts secured with set screws.
Integral Vacuum Breaker covers shall be secured with screws that may be
removed only by maintenance personnel.
2.
Gas Fixtures.
Provide gas fittings in multiple service faucets, deck mounted turrets, or
panel mounted flanges with ball valve, forged brass lever handle, nonremovable serrated hose end, and color coded index button.
Provide ball valve with chrome plated ball and PTFE seals. Handle shall
require no more than 5 ft-lbf to operate. Valve is factory tested at 125 PSI.
Maximum working pressure is 75 PS.
3.
Water Faucets and Valves.
Provide units that comply with SEFA 7 - 2010, Laboratory Service Fittings
- Recommended Practices, and also complying with ANSI/ASME
A112.18.1 - 2005 and certified by CSA International under CAN/CSA
B.125.1 - 05.
Provide units fabricated from cast or forged red brass unless otherwise
indicated.
Provide fittings complete with threaded mounting shanks, locknuts, and
washers. Include necessary flanges, escutcheons, extension rods, etc.
Provide units complying with ADA accessible requirements where
indicated on Drawings or Equipment List.
One Faucet shall be provided with 4" wrist-blade handles at ADA sinks.
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All Water faucets shall be provided with Aerators unless specifically
noted to have Serrated Hose Ends.
If Serrated Hose Ends are required on Water Faucets, provide unit with
Vacuum Breaker.
Water Faucets shall have self-contained renewable compression valve
units with stainless steel valve seats. Compression unit valve stem shall
be sealed with molded TFE stem packing to prevent leakage. Provide
color coded index buttons.
4.
Quality Assurance
All water faucets and gas fixtures shall be fully assembled and factory
tested prior to shipment.
5.
All Water and Gas Service Fixtures shall have Black Powder Coat Epoxy
Finish.
6.
Multiple Service Water/Gas Fixture Combination Faucets.
Sheldon Unicast Faucet No. 80020
 Combination Cold Water/Gas Fixture with Aerator

Black powder coat epoxy finish

Color coded Nylon Handles for cold water

Vandal- Resistant
Sheldon Unimix Faucet No. 80030
 Combination Hot Water/Cold Water /Gas Fixture with Aerator

Black powder coat epoxy finish

Color coded Nylon Handles for hot and cold water

Vandal-Resistant
Approved Equal
Watersaver Faucet Co. No. VR5300WSA
 Combination Cold Water/Gas Fixture with Aerator

Black powder coat epoxy finish

Color coded Nylon Handles for cold water

Vandal-Resistant
Watersaver Faucet Co. No. VR5800WSA
 Combination Hot Water/Cold Water/Gas Fixture with Aerator
12
E.

Black powder coat epoxy finish

Color coded Nylon Handles for hot and cold water

Vandal-Resistant
Drain Fittings
1.
Sink Fittings
Sinks shall be provided with 1-1/2" Dia. x 3" threaded Polypropylene Sink
Outlet with Locknut, Removable Disc Strainer, and Sink Stopper.
F.
2.04
Electrical Fixtures
1.
Electrical Fixtures that are a part of, or installed in the Lab Equipment
shall be approved by the National Board of Underwriters and must
conform to City and State Building Codes.
2.
Knock-out Boxes when indicated, shall be installed in the Lab Equipment.
3.
Receptacles shall be grounded type, 20-amp heavy-duty industrial grade.
TECHNICAL PRODUCTS
A.
General
1.
The following Equipment List is provided to accurately describe specific
Technical Products shown on the Drawings and Equipment List
PART 3 EXECUTION
3.01
COORDINATION
The casework contractor shall coordinate all deliveries and installation of this equipment with the
General Contractor and associated trades.
A.
Lab casework shall not be delivered to the jobsite until the following conditions
have occurred.
1.
Overhead ceiling work - ductwork, lighting, acoustical ceiling, etc. is
complete.
2.
Windows and exterior doors are installed. Building is secure and weather
tight.
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3.
B.
3.02
3.03
Air circulation control system is functioning and maintaining relatively
constant temperature and humidity conditions closely approximating those
to be maintained by the Owner.
It is recommended that all painting be completed in the areas in which casework
is to be installed prior to such installation.
CABINET INSTALLATION
A.
The casework shall be delivered to the building in prefinished modular units. It
shall be set in place, leveled, secured to walls or floors as necessary, trimmed or
scribed to make a neat installation. Installation shall be under the direction of a
factory approved superintendent.
B.
Provide filler panels where required to close spaces between casework and walls.
C.
The casework contractor shall deliver to the appropriate contractor all sinks,
troughs, service fixtures, etc., as supplied in this section, for installation and
connection by the appropriate trades.
CLEANING AND PROTECTION
A.
Remove all debris, dirt, rubbish and excess material accumulated as a result of
the installation of this equipment and leave casework clean and orderly.
B.
Advise contractor of procedures for protection of installed material from damage
from work of other trades.
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