Intertek Group plc
C
Commercial
i l & El
Electrical
t i l Products
P d t Division
Di i i
April 12, 2012
Air Barrier Association of America
Mike Luna
www.intertek.com
1
Outline for this Presentation
•
Intertek – Who we are and what we do?
•
NFPA 285:
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•
•
•
•
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Intent
Test Apparatus
Test Specimen
Instrumentation
Calibration
Testing
g and Criteria
Short Video
Questions???
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2
Intertek’s
Intertek
s Global Network
Countries
Locations
100+
1,000+
Staff
23,000+
Floated May 2002 – LSE: ITRK
FTSE 100, Support Services Sector
Market Cap – £1.5B
EMEA
AMERICAS
APAC
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3
Our industries
Supporting our customers in their global trade…..
O organization
Our
i ti
The industries we operate in
Agriculture
CONSUMER GOODS
What we do
Testing
Automotive
Chemical
COMMERCIAL &
ELECTRICAL
Inspection
Consumer Products
Electrical & Electronic
Certification
Energy & Fuels
INDUSTRIAL
Food
Auditing
Government
OIL, CHEMICAL, AGRI
Industrial
Quality Assurance
IT & Telecom
ANALYTICAL SERVICES
Minerals
Advisory
Pharmaceutical
MINERALS
R t il
Retailers
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Our Roots
1896
•
As one of Thomas Edison’s companies, we began
testing light bulbs in 1896.
•
Over 100 years later
later, we have built the largest
network of product safety and conformance
laboratories.
1925
1955
1925: SEMKO est
1896: Edison’s Testing
Bureau est; later
named ETL
1927: Chas Warnock
Co. founded
1965
1961: SEMKO joins CB
Scheme: today’s largest issuer
1989
1989: ETL OSHA
recognized NRTL
1965: WH successfully challenges UL,
1992: Inchcape
CSA in Canada: sets precedent
issues first ISO 9000
certificate
2004
2005
2004: Entela acquired
as entrée into
automotive`
2007
2006: ETL is the fastest
Growing certification
Mark in North America
2005: OPL acquired as
BP Lab
www.intertek.com
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Core Services: Building Products & Materials
Account Management
• Develop testing and certification programs
• Initiate p
projects
j
Testing Operations
Engineering Services
• Specialize in Codes
S
Sample
l selection
l ti
Submittal packages
QC Manuals
In-house QC development
Engineering
g
g evaluations
Standards development
• Traditional independant thrid party testing
Fire ttesting
Fi
ti
Physical testing
Structural Testing
Chemical testing
Biological testing
Certification
• Ongoing product certifcation
• Follow-up inspections
• Prodcut marking
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Conformity Assessment Services
•
•
Product Safety Testing
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•
•
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Electromagnetic Compatibility (EMC) Testing
Product Certification -- w/ some of the world’s
mostt recognized
i db
brands
d
Field Labeling
Sanitation Testing
Fire Testing
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Performance and Benchmark Testing
•
•
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Product Comparison
Claims Verification
Product
Prod
ct Q
Quality
alit & Performance
Certification
Failure Analysis
Warranty and Returns Analyses
Accelerated Life
Energy Efficiency
RoHS, Reach, PROP 65
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Global Approvals
•
Intertek is a global leader in issuing CB
Scheme certifications
•
Enable clients market access to 124
countries
•
Recognized or approved by more than 30
accreditation bodies around the world
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NFPA 285
“Standard
“St
d d Fi
Fire T
Testt Method
M th d for
f Evaluation
E l ti off
Fire Propagation Characteristics of Exterior
Non-Load Bearing
g Wall Assemblies
Containing Combustible Components”
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Short History
•
In mid 1970’s – use of foam plastic on or in noncombustible
exterior walls was proposed.
•
Issues raised over potential for vertical and horizontal fire
spread due to the combustibles
•
•
Work began in Codes and Testing.
•
Testing was to provide reproducible tests at an independent
laboratory
Testing was to show efficacy of proposed wall systems to
resist flame spread
spread.
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Full-Scale
Full
Scale Outdoor Test
•UBC 17
17--6 / UBC 26
26--4
•24 ft. (7.3 m) high, each floor was 12 ft. (3.6 m) high
•Test walls formed two exterior walls of the building. Walls
were ~ 26 ft. high x 18 ft. wide (7.9 m x 5.5 m)
•One wall had a window for fire ventilation
•Wall instrumented to measure temperatures on exterior face
and in combustible core materials as well as in the burn
room and on the interior surface of the walls in the burn room
area.
area
•Ignition source was 1,285 lb (583 kg) wood crib placed in
first floor.
•Fire source designed
g
to p
produce E119 fire exposure
p
to
interior of 1st floor walls and allow flames to extend out of
the window and expose the exterior wall surface.
•Run test of 30 minutes
•Pass/Fail
P
/F il – based
b
d on visual
i
l observations
b
ti
and
d
instrumentation.
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Intermediate Scale Indoor Test
•
•
UBC 26
26--9 / NFPA 285
Recognized that problems existed
with FullFull-scale test:
•
•
•
Weather
Timing – construction on building
Costs
•
•
Indoor Facility
•
•
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Test one wall w/ window opening
Apparatus 15 ft. (4.6 m) tall, each
floor to be 7 ft. ((2.1 m)) high
g x 10 ft.
(3.0 m) wide
Wall 18 ft. x 13.4 ft (5.5 m x 4.1 m)
U gas b
Use
burners – 1 iin room and
d 1 iin
window – Flows vary during test
•
Use similar instrumentation (~54 – 67
TCs)
•
•
U similar
Use
i il pass/fail
/f il criteria
it i
Test correlated with fullfull-scale testing
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NFPA 285
Purpose:
To provide
T
id a standardized
t d di d fifire ttestt
procedure for evaluating the suitability of
exterior non-load bearing
g wall assemblies
and panels used as components in curtain
wall assemblies, constructed using
combustible materials or components for
use on buildings where the exterior walls
are required to be noncombustible.
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NFPA 285
A li ti
Application:
Used to evaluate the fire propagation in the following
manner:
1. To resist flame propagation over the exterior face
of the assembly.
2. To resist vertical flame propagation within the
combustible core from one story to the next.
3. To resist vertical flame propagation over the
interior face of the assembly from one story to the
next.
4. To resist lateral flame propagation from the
compartment of origin to adjacent compartments.
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NFPA 285
Application:
Is NOT intended to evaluate the
performance of the perimeter joint where
materials are used to seal the gap between
the edge of the second floor slab and the
interior surface of the wall assembly.
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NFPA 285 – Test Apparatus
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NFPA 285 – Test Apparatus
Two Burners: Window and Burn
Room (Gas Fired)
Window Burner: At window opening
(60 in. long x 2 in. outside dia. Pipe
with ½” x 44” slot.
Burn Room Burner: 2 in. pipe in a
rectangular shape that protrudes 6-ft
into room and spans 5-ft
5 ft across 2.5-ft
2 5 ft
off ground. 1/8” dia. Holes spaced 1”
apart beginning 3-ft 6-in. from back
wall.
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NFPA 285 – Test Specimen
•
Built
B
ilt on front
f t face
f
off the
th test
t t apparatus
t or on a
moveable test frame.
•
•
Size: Minimum 17.5 ft high
g x 13.3 ft wide
Position on Apparatus:
• Below top of 1st story slab: 2” or greater
• Above top of apparatus: 2 ft or greater
• Beyond outside edges of side walls: 1 ft or
greater
•
Shall completely cover the front face of test
apparatus except for the window opening in first story
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NFPA 285 – Test Specimen
•
C
Construction
t ti D
Details
t il
•
Constructed and secured representative of actual
field installations.
•
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Construction per manufacturer’s instructions.
•
Window shall be p
placed in 1st Story
y room
measuring 30 in. tall x 78 in. wide and detail
representative of actual field conditions. Sill
height shall be 30 in. from floor.
Where vertical or horizontal joints or seams are
contained in actual field installations, they shall
be incorporated into the test specimen.
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NFPA 285 – Instrumentation
•
Used to measure Flame Spread in core,
from floor to floor, and on exterior face of
wall assembly
assembly.
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Instrumentation – Exterior Wall TCs
13
12
14
15
11
16
17
10
9
TC 11, 14-17 2 ft.
o.c. typ
8
7
6
5
210 in.
4
3
2
1
TC 2-13 1 ft. o.c. typ
Starting at header
TC 1 6 in. below
header
160 in.
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Instrumentation – Core TCs
TC 28, 34, 35, 40, 39
2 ft. o.c. typ
30
29
34
28
35
40
39
27
38
33
26
25
32
24
31
23
37
36
22
210 in.
21
20
18
TC 20-30 1 ft o.c
typ.
Starting at 2 ft above
header
19
74.75
in
128 in.
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Instrumentation – First Floor Room TCs
TC 44
TC 45
TC 43
TC 41
TC 42
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Instrumentation – 2nd Floor Interior Wall TCs
TC 49-54 32 in. o.c.
typ.
Starting at 6 in above
floor
52
53
210 in.
54
1 ft
49
50
51
160 in.
in
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CALIBRATIONS
1. Frequency:
•
Within one year of any test performed for a client
•
When equipment is replaced or repaired
2. Why?
•
To have consistency from independent labs
•
To determine gas flow rates to be used during test to achieve correct
heat flux and temperatures during test
3 What
3.
What’ss Measured?
•
Heat flux on exterior face of calibration wall assembly
•
Temperatures on Exterior face of wall assembly
•
Temperatures 1-in.
1 in. away from interior wall in 1st Floor
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Calibration Test
• Wall assembly made of gypsum wall
board
• Window dimensions are 30 in. high x
78 in. wide
• Top of window located 5 ft from
bottom of 1st story floor
• Calorimeters located 2-ft, 3-ft, and 4ft centered above window header
• TCs located centered beginning 6-in.
above window header and continuing
up height of wall every 1-ft
• Calibration is repeated until all TCs
and Heat Flux measurements are
within specification in standard
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Testing & Criteria
•
Test Sequence:
•
Test to be run with same location of window burner and flow rates
for burners used in Calibration
•
Ambient lab temperature at start of test shall be between 50
50-90
90
deg F
•
•
RH shall be between 20-80%
•
•
Pre-test photos and video set up and Instrumentation verified
•
At 5 min into test Window Burner already started in place per the
Calibration
•
Test continues for 30 min. Video and photos continue until
t
termination
i ti off test
t t
Airflow across face of test sample shall be less than 4.4 ft/sec as
measured with an anemometer
1st Story Room Burner started to follow fuel flow per the
Calibration and timer activated
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Testing & Criteria
•
Test Observations:
• Visual observations throughout test are documented
• Photos duringg construction, ppre-test, duringg test, ppost-test,
and during dissection after cooled down
• Video 1 min prior to initiation of test, during entire test,
and 10 min after test terminated
• Video in 2nd story room showing intersection of interior of
wall assembly and floor intersection
• Visual observations after dissection to show depth and
height of damage to the combustible core
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Testing & Criteria
•
Conditions of Acceptance
• Performance based on visual observations and
temperature data collected
• Passing the test:
• Flame propagation on exterior of wall assembly
• Determined byy TCs 11, 14-17 reach 1000 degg F
• Visual observation of flames 10-ft or greater
above window header
• Visual observation of flames 5-ft or greater from
vertical centerline of window
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Testing & Criteria
•
Conditions of Acceptance cont…
•
•
Flame propagation in combustible core
•
Depending on construction, different TCs installed are
used to determine pass/fail
•
No visual observation
Flame propagation beyond 1st Story Room
•
Visual observation on exterior beyond the limits of the
side walls of the test room or intersection of exterior
wall and the side walls of the test room
•
In the core, depending on construction, different TCs
installed are used to determine pass/fail (Same as
above)
•
Temperatures in 2nd Story Room shall not exceed 500 deg F
above ambient
•
Fl
Flames
shall
h ll nott occur iin th
the 2nd Story
St
test
t t room
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NFPA 285 Test in Action!
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Questions?
Thank YOU!
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