ASTM E2749-23
(Practice)Standard Practice for Measuring the Uniformity of Furnace Exposure on Test Specimens
Standard Practice for Measuring the Uniformity of Furnace Exposure on Test Specimens
SIGNIFICANCE AND USE
5.1 This practice describes a procedure to gather data intended to measure the uniformity of exposure conditions upon test specimens for the fire test methods described in Test Methods E119, E814, E1529, E1725, E1966 and E2336. The collected data from furnaces are intended to form a basis for performance requirements for the furnaces described in the referenced standards.
5.2 This practice does not include requirements for furnace performance.
5.3 In this procedure, the standardized test specimen is 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 procedure 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.
5.4 The attention of all persons connected with the conduct of this practice is drawn to the fact that fire testing is hazardous and that there is a possibility that harmful smoke and gases are developed during the test. There is also a possibility that mechanical and operational hazards develop during the construction of the test specimen and the disposal of the test residues. An assessment of all potential hazards and risks to health shall be made and safety precautions shall be identified and provided. Written safety instructions shall be issued. Appropriate training shall be provided to relevant personnel. Laboratory personnel shall ensure that they follow written safety instructions at all times.
SCOPE
1.1 This standard provides general principles for measuring the uniformity of the furnace exposure on specimens tested in accordance with Test Methods E119, E814, E1529, E1725, E1966 and E2336.
1.2 This practice specifies the materials and the construction requirements for a standardized test specimen used to provide a mounting surface for the instrumentation that measures furnace exposure.
1.3 The instrumentation records temperatures, pressure differentials, and oxygen content near the exposed surface of the test specimen.
1.4 The values stated in SI units are to be regarded as the standard. The units given in parentheses are for information only.
1.5 This standard 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.
1.6 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E2749 − 23 An American National Standard
Standard Practice for
Measuring the Uniformity of Furnace Exposure on Test
1
Specimens
This standard is issued under the fixed designation E2749; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This standard provides general principles for measuring
the uniformity of the furnace exposure on specimens tested in
2. Referenced Documents
accordance with Test Methods E119, E814, E1529, E1725,
2
2.1 ASTM Standards:
E1966 and E2336.
C1396/C1396M Specification for Gypsum Board
1.2 This practice specifies the materials and the construction
E119 Test Methods for Fire Tests of Building Construction
requirements for a standardized test specimen used to provide
and Materials
a mounting surface for the instrumentation that measures
E176 Terminology of Fire Standards
furnace exposure.
E814 Test Method for Fire Tests of Penetration Firestop
Systems
1.3 The instrumentation records temperatures, pressure
E1529 Test Methods for Determining Effects of Large Hy-
differentials, and oxygen content near the exposed surface of
drocarbon Pool Fires on Structural Members and Assem-
the test specimen.
blies
1.4 The values stated in SI units are to be regarded as the
E1725 Test Methods for Fire Tests of Fire-Resistive Barrier
standard. The units given in parentheses are for information
Systems for Electrical System Components
only.
E1966 Test Method for Fire-Resistive Joint Systems
E2336 Test Methods for Fire Resistive Grease Duct Enclo-
1.5 This standard is used to measure and describe the
response of materials, products, or assemblies to heat and sure Systems
3
2.2 ISO Standard:
flame under controlled conditions, but does not by itself
incorporate all factors required for fire hazard or fire risk ISO 834-2 Fire resistance tests – Elements of building
assessment of the materials, products, or assemblies under construction – Part 2: Guide on measuring uniformity of
actual fire conditions. furnace exposure on test samples
1.6 Fire testing is inherently hazardous. Adequate safe-
3. Terminology
guards for personnel and property shall be employed in
3.1 Definitions—For definitions of terms used in this
conducting these tests.
practice, refer to Terminology E176.
1.7 This standard does not purport to address all of the
3.2 Definitions of Terms Specific to This Standard:
safety concerns, if any, associated with its use. It is the
3.2.1 effective area of the furnace opening, n—furnace
responsibility of the user of this standard to establish appro-
opening within the boundaries of the monitoring instrumenta-
priate safety, health, and environmental practices and deter-
tion.
mine the applicability of regulatory limitations prior to use.
1.8 This international standard was developed in accor-
4. Summary of Practice
dance with internationally recognized principles on standard-
4.1 This practice consists of preparing a standardized test
ization established in the Decision on Principles for the
specimen to represent test specimens described in Test Meth-
Development of International Standards, Guides and Recom-
ods E119, E814, E1529, E1725, E1966 and E2336. The
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This practice is under the jurisdiction of ASTM Committee E05 on Fire contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards and is the direct responsibility of Subcommittee E05.11 on Fire Standards volume information, refer to the standard’s Document Summary page on
Resistance. the ASTM website.
3
Current edition approved Oct. 1, 2023. Published October 2023. Originally Available from International Organization for Standardization (ISO), ISO
approved in 2010. Last previous edition approved in 2019 as E2749 – 15a (2019). Central Secretariat, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,
DOI:10.1520/E2749-23. Switzerland, https://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2749 − 23
standardized test specimen provides a low cost, easily con-
structed supporting construction for the mounting of instru-
mentation that measures the exposure imposed by the furnace
onto test specimens.
4.2 The standardized test specimen consists
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2749 − 15a (Reapproved 2019) E2749 − 23 An American National Standard
Standard Practice for
Measuring the Uniformity of Furnace Exposure on Test
1
Specimens
This standard is issued under the fixed designation E2749; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This standard provides general principles for measuring the uniformity of the furnace exposure on specimens tested in
accordance with Test Methods E119, E814, E1529, E1725, E1966 and E2336.
1.2 This practice specifies the materials and the construction requirements for a standardized test specimen used to provide a
mounting surface for the instrumentation that measures furnace exposure.
1.3 The instrumentation records temperatures, pressure differentials, and oxygen content near the exposed surface of the test
specimen.
1.4 The values stated in SI units are to be regarded as the standard. The units given in parentheses are for information only.
1.5 This standard 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.
1.6 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these
tests.
1.7 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C1396/C1396M Specification for Gypsum Board
E119 Test Methods for Fire Tests of Building Construction and Materials
1
This practice is under the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibility of Subcommittee E05.11 on Fire Resistance.
Current edition approved March 1, 2019Oct. 1, 2023. Published March 2019October 2023. Originally approved in 2010. Last previous edition approved in 20152019 as
E2749 – 15a.E2749 – 15a (2019). DOI:10.1520/E2749-15AR19.DOI:10.1520/E2749-23.
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 the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2749 − 23
E176 Terminology of Fire Standards
E814 Test Method for Fire Tests of Penetration Firestop Systems
E1529 Test Methods for Determining Effects of Large Hydrocarbon Pool Fires on Structural Members and Assemblies
E1725 Test Methods for Fire Tests of Fire-Resistive Barrier Systems for Electrical System Components
E1966 Test Method for Fire-Resistive Joint Systems
E2336 Test Methods for Fire Resistive Grease Duct Enclosure Systems
3
2.2 ISO Technical Report:Standard:
ISO/TRISO 834-2 Fire resistance tests – Elements of building construction – Part 2: Guide on measuring uniformity of furnace
exposure on test samples
3. Terminology
3.1 Definitions—For definitions of terms used in this practice, refer to Terminology E176.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 effective area of the furnace opening—opening, n—furnace opening within the boundaries of the monitoring instrumentation.
4. Summary of Practice
4.1 This practice consists of preparing a standardized test specimen to represent test specimens described in Test Methods E119,
E814, E1529, E1725, E1966 and E2336. The standardized test specimen provides a low cost, easily constructed supporting
construction for the mounting of instrumentation that measures the exposure imposed by the furnace onto test specimens.
5
4.2 T
...
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