Standard Test Method for Determination of Time to Burn-Through Using the Intermediate Scale Calorimeter (ICAL) Radiant Panel

SIGNIFICANCE AND USE
5.1 This test method is used primarily to determine the time to burn-through and the time to ignition of materials, products, and assemblies.  
5.2 Representative joints and other characteristics of an assembly shall be included in a specimen when these details are part of normal design.  
5.3 This test method is applicable to end-use products not having an ideally planar external surface. The heat flux shall be adjusted to be that which is desired at the average distance of the surface from the radiant panel.  
5.4 In this procedure, the specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. Therefore, the results are valid only for the fire test exposure conditions described in this procedure.  
5.5 Representative materials and thicknesses shall be included in a specimen when these details are part of normal design.  
5.6 This method can also be used for research and development of various material types to be included in larger-scale fire test assemblies (for example, Test Methods E119).  
5.7 Test Limitations:  
5.7.1 The test results have limited validity if: (a) the specimen melts sufficiently to overflow the drip tray, or (b) explosive spalling occurs.  
5.7.2 Report observations of specimens that sag, deform, or delaminate.
SCOPE
1.1 This fire-test-response test method assesses the response of materials, products, and assemblies to controlled levels of heat flux with an external igniter.  
1.2 The fire-test-response characteristics determined by this test method include the ignitability and time to burn-through of materials, products, and assemblies under well ventilated conditions.  
1.3 Heat, smoke, and mass loss rate are not within the scope of this test method, but are addressed by Test Method E1623.  
1.3.1 This test method uses the same burner as that described in Test Method E1623. Two burner types are described (Burner A and Burner B).  
1.4 Specimens are exposed to a constant heat flux up to 50 kW/m2 in a vertical orientation. Hot wires are used to ignite the combustible vapors from the specimen.  
1.5 This test method has been developed for evaluations, design, or research and development of materials, products, or assemblies, or for code compliance. The specimen shall be tested in thicknesses and configurations representative of actual end product or system uses.  
1.6 Limitations of the test method are listed in 5.7.  
1.7 This test method is used to measure and describe 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.  
1.8 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.  
1.9 The values stated in SI units are to be regarded as standard.  
1.10 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. Specific information about hazards is given in Section 7.

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ASTM E3048-16 - Standard Test Method for Determination of Time to Burn-Through Using the Intermediate Scale Calorimeter (ICAL) Radiant Panel
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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: E3048 − 16 An American National Standard
Standard Test Method for
Determination of Time to Burn-Through Using the
1
Intermediate Scale Calorimeter (ICAL) Radiant Panel
This standard is issued under the fixed designation E3048; 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 responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 Thisfire-test-responsetestmethodassessestheresponse
bility of regulatory limitations prior to use. Specific informa-
of materials, products, and assemblies to controlled levels of
tion about hazards is given in Section 7.
heat flux with an external igniter.
1.2 The fire-test-response characteristics determined by this
2. Referenced Documents
testmethodincludetheignitabilityandtimetoburn-throughof
2
2.1 ASTM Standards:
materials, products, and assemblies under well ventilated
E119Test Methods for Fire Tests of Building Construction
conditions.
and Materials
1.3 Heat,smoke,andmasslossratearenotwithinthescope
E176Terminology of Fire Standards
of this test method, but are addressed by Test Method E1623.
E603Guide for Room Fire Experiments
1.3.1 This test method uses the same burner as that de-
E906/E906MTest Method for Heat and Visible Smoke
scribed inTest Method E1623.Two burner types are described
Release Rates for Materials and Products Using a Ther-
(Burner A and Burner B).
mopile Method
E1354Test Method for Heat and Visible Smoke Release
1.4 Specimens are exposed to a constant heat flux up to 50
2
Rates for Materials and Products Using an Oxygen Con-
kW/m inaverticalorientation.Hotwiresareusedtoignitethe
sumption Calorimeter
combustible vapors from the specimen.
E1623Test Method for Determination of Fire and Thermal
1.5 This test method has been developed for evaluations,
Parameters of Materials, Products, and Systems Using an
design, or research and development of materials, products, or
Intermediate Scale Calorimeter (ICAL)
assemblies, or for code compliance. The specimen shall be
testedinthicknessesandconfigurationsrepresentativeofactual
3. Terminology
end product or system uses.
3.1 Definitions:
1.6 Limitations of the test method are listed in 5.7.
3.1.1 For definitions of terms used in this test method, refer
1.7 This test method is used to measure and describe the
to Terminology E176.
responseofmaterials,products,orassembliestoheatandflame
3.1.2 heat flux, n—heat transfer to a surface per unit area,
under controlled conditions, but does not by itself incorporate
per unit time (see also initial test heat flux).
allfactorsrequiredforfirehazardorfireriskassessmentofthe
3.1.2.1 Discussion—The heat flux from an energy source,
materials, products, or assemblies under actual fire conditions.
such as a radiant heater, can be measured at the initiation of a
test (such asTest MethodE1354, E1623,or E906/E906M) and
1.8 Fire testing is inherently hazardous. Adequate safe-
then reported as the incident heat flux, with the understanding
guards for personnel and property shall be employed in
that the burning of the test specimen can generate additional
conducting these tests.
heat flux to the specimen surface. The heat flux can also be
1.9 The values stated in SI units are to be regarded as
measured at any time during a fire test, for example as
standard.
described in Guide E603, on any surface, and with measure-
1.10 This standard does not purport to address all of the
ment devices responding to radiative and convective fluxes.
2 2 2 2
safety concerns, if any, associated with its use. It is the
Typical units are kW/m , kJ/(s m ), W/cm , or BTU/(s ft ).
1
This test method is under the jurisdiction of ASTM Committee E05 on Fire
2
Standards and is the direct responsibility of Subcommittee E05.21 on Smoke and For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Combustion Products. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
CurrenteditionapprovedDec.15,2016.PublishedJanuary2017.DOI:10.1520/ Standards volume information, refer to the standard’s Document Summary page on
E3048-16. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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E3048 − 16
3.1.3 initial test heat flux, n—the heat flux set on the test adjusted to be that which is desired at the average distance of
apparatus at the initiation of the test (see also heat flux). the surface from the radiant panel.
3.1.4 orientation, n—theplaneinwhichtheexposedfaceof
5.4 In this proc
...

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