Standard Test Method to Measure Heat Transfer Through Textile Thermal Barrier Materials

SCOPE
1.1 This test method covers the evaluation of heat transfer of textile materials which are used as thermal barriers when exposed to a calibrated convective and radiant energy heat source for 60 seconds.
1.1.1 This standard is used to determine if the heat transfer is sufficient to ignite flammable materials which are contiguous to the textile thermal barriers.
1.2 This standard is used as a means to differentiate textile materials.
1.3 This test method is not intended to measure the insulation properties of materials used in protective clothing.
1.4 The values stated in either acceptable metric units or in other units shall be regarded separately as standard. The values expressed in each system must be used independently of each other, without combining values in any way.
1.5 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Dec-2006
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM D7140-07 - Standard Test Method to Measure Heat Transfer Through Textile Thermal Barrier Materials
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7140 − 07
StandardTest Method to
Measure Heat Transfer Through Textile Thermal Barrier
1
Materials
This standard is issued under the fixed designation D7140; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 Other Standards:
State of California, Technical Bulletin 603Requirements
1.1 This test method covers the evaluation of heat transfer
and Test Procedures for Resistance of a Mattress/
of textile materials which are used as thermal barriers when
3
Boxspring Set to a Large Open Flame, January, 2004
exposed to a calibrated convective and radiant energy heat
source for 60 seconds.
3. Terminology
1.1.1 This standard is used to determine if the heat transfer
issufficienttoigniteflammablematerialswhicharecontiguous 3.1 Definitions:
to the textile thermal barriers. 3.1.1 exposure energy to thermal end point, n—the thermal
energytransferredthroughaspecimenthatissufficienttocause
1.2 This standard is used as a means to differentiate textile
ignition of contiguous materials.
materials.
3.2 The following terms are relevant to this standard: break
1.3 This test method is not intended to measure the insula-
open, charring, dripping, embrittlement, heat flux, ignition,
tion properties of materials used in protective clothing.
melting, shrinkage.
1.4 The values stated in either acceptable metric units or in
3.2.1 For all terminology relating to D13.52, Flammability,
otherunitsshallberegardedseparatelyasstandard.Thevalues
refer to Terminology D4391.
expressed in each system must be used independently of each
3.3 For all terminology related to Textiles see Terminology
other, without combining values in any way.
D123
1.5 This standard measures and describes the response of
materials, products, or assemblies to heat and flame under
4. Summary of Test Method
controlled conditions, but does not by itself incorporate all
4.1 Atextile thermal barrier that is used to prevent transfer
factors required for fire hazard or fire risk assessment of the
of heat to flammable materials which are contiguous to this
materials, products or assemblies under actual fire conditions.
barrier are exposed to a controlled radiant and convective heat
1.6 This standard does not purport to address all of the
source for 60 seconds.
safety concerns, if any, associated with its use. It is the
4.2 The heat transfer is measured using a data collection
responsibility of the user of this standard to establish appro-
system.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 4.3 Performance of thermal barrier textile material is deter-
minedbytheamountofheattransferredthroughthespecimen.
2. Referenced Documents
2
5. Significance and Use
2.1 ASTM Standards:
D123Terminology Relating to Textiles
5.1 This test method measures the level of heat transfer
D4391Terminology Relating to The Burning Behavior of
through the thermal barrier textile material within a specific
Textiles
period of time.
5.2 Thistestmethodisusedtoevaluatethermalbarriersand
1
This standard is under the jurisdiction of ASTM Committee D13 on Textiles
determine if they are able to withstand impingement by an
and is the direct responsibility of Subcommittee D13.52 on Flammability.
open flame.
Current edition approved Jan. 1, 2007. Published January 2007. Originally
5.2.1 Thistestmethodisusedtoevaluateheattransferwhen
approved in 2005. Last previous edition approved in 2005 as D7140–05. DOI:
thermal barrier textile materials are used in conjunction with
10.1520/D7140-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
3
the ASTM website. Available from the State of California.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D7140 − 07
materials that demonstrate any of the following behaviors 6.5 Copper calorimeter mounted in an insulating block and
when exposed to high heat: constructed as shown in Fig. 2.
break open 6.5.1 Calorimeter is painted black using a high temperature
charring flat black stove pipe primer.
dripping
6.6 Dimensionsfortwo(2)mountingplatesareLength6in.
embrittlement
(152 mm), Width 6 in. (152 mm), each with a 3 in. (76 mm) ×
ignition
3 in. (76 mm) hole in center. Each plate thickness is 1/8 in. (3
melting
mm). See Fig. 3. The bottom plate which faces the flame must
shrinkage
be made of steel. The top
...

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