ASTM C1795-17
(Test Method)Standard Test Methods for High-Temperature Characterization of Gypsum Boards and Panels
Standard Test Methods for High-Temperature Characterization of Gypsum Boards and Panels
SCOPE
1.1 These test methods describe three bench top test methods for measuring the thermophysical responses of gypsum boards and panels when exposed to high temperatures. The test methods are:
1.1.1 High-temperature Core Cohesion—This test method evaluates the ability of the test specimen to withstand a specified mechanical strain while exposed to elevated temperature.
1.1.2 High-temperature Shrinkage—This test method evaluates dimensional changes in the test specimen when exposed to elevated temperatures.
1.1.3 High-temperature Thermal Insulation—This test method evaluates the rate of heat transfer through the thickness of the test specimen by measuring the length of time required to heat the center of the test specimen over a specified temperature rise when exposed to prescribed furnace conditions.
1.2 The test methods appear in the following order:
Test Method
Section
High-temperature Core Cohesion
4
High-temperature Shrinkage
5
High-temperature Thermal Insulation
6
1.3 Units—The values stated in either inch-pound units or SI units (given in parenthesis) are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 While these tests are useful for evaluating fire properties of gypsum boards and panels, they are not suitable for predicting the Test Methods E119 fire resistance performance of a specific gypsum protected assembly that has not previously been tested in accordance with Test Methods E119 and correlated to these tests.2
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 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.
1.7 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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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: C1795 − 17
Standard Test Methods for
High-Temperature Characterization of Gypsum Boards and
1
Panels
This standard is issued under the fixed designation C1795; 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 ously been tested in accordance with Test Methods E119 and
2
correlated to these tests.
1.1 These test methods describe three bench top test meth-
1.5 This standard is used to measure and describe the
ods for measuring the thermophysical responses of gypsum
response of materials, products, or assemblies to heat and
boardsandpanelswhenexposedtohightemperatures.Thetest
flame under controlled conditions, but does not by itself
methods are:
incorporate all factors required for fire hazard or fire risk
1.1.1 High-temperature Core Cohesion—This test method
assessment of the materials, products, or assemblies under
evaluates the ability of the test specimen to withstand a
actual fire conditions.
specifiedmechanicalstrainwhileexposedtoelevatedtempera-
1.6 This standard does not purport to address all of the
ture.
safety concerns, if any, associated with its use. It is the
1.1.2 High-temperature Shrinkage—Thistestmethodevalu-
responsibility of the user of this standard to establish appro-
atesdimensionalchangesinthetestspecimenwhenexposedto
priate safety and health practices and determine the applica-
elevated temperatures.
bility of regulatory limitations prior to use.
1.1.3 High-temperature Thermal Insulation—This test
1.7 This international standard was developed in accor-
methodevaluatestherateofheattransferthroughthethickness
dance with internationally recognized principles on standard-
of the test specimen by measuring the length of time required
ization established in the Decision on Principles for the
to heat the center of the test specimen over a specified
Development of International Standards, Guides and Recom-
temperature rise when exposed to prescribed furnace condi-
mendations issued by the World Trade Organization Technical
tions.
Barriers to Trade (TBT) Committee.
1.2 The test methods appear in the following order:
2. Referenced Documents
Test Method Section
2.1 ASTM Standards:
High-temperature Core Cohesion 4
C11Terminology Relating to Gypsum and Related Building
High-temperature Shrinkage 5
Materials and Systems
High-temperature Thermal Insulation 6
E119Test Methods for Fire Tests of Building Construction
1.3 Units—The values stated in either inch-pound units or
and Materials
SI units (given in parenthesis) are to be regarded separately as
E631Terminology of Building Constructions
standard. The values stated in each system may not be exact
2.2 Other Standards:
equivalents;therefore,eachsystemshallbeusedindependently
EN 520Gypsum Plasterboards—Definitions, Requirements
of the other. Combining values from the two systems may
and Test Methods
result in non-conformance with the standard.
1.4 Whilethesetestsareusefulforevaluatingfireproperties
3. Terminology
of gypsum boards and panels, they are not suitable for
3.1 General—Refer to Terminologies C11 and E631 for
predicting the Test Methods E119 fire resistance performance
standard terminology on gypsum and related building
of a specific gypsum protected assembly that has not previ-
materials, systems and building construction.
3.2 Definitions of Terms Specific to This Standard:
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC11onGypsum
and Related Building Materials and Systems and is the direct responsibility of
2
Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products. Shipp, P. H., andYu, Q., “Thermophysical Characterization of Type X Special
Current edition approved June 1, 2017. Published June 2017. Originally Fire Resistant Gypsum Board,” Proceedings of the Fire and Materials 2011
approved in 2005. Last previous edition approved in 2015 as C1795–15. DOI: Conference, San Francisco, Jan. 1, 2011 – Feb. 2, 2011, Interscience Communica-
10.1520/C1795-17. tions Ltd., London, UK, pp417-426.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1795 − 17
3.2.1 Thermal Insulation Index (TI), n—asinglevalueindex a mounting hole drilled in it near the outer extremity and is of
that denotes the rate of heating at the center of the Thermal sufficient length that the hook or wire by which the loading
Insulation Test specimen as determined by
...
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: C1795 − 15 C1795 − 17
Standard Test Methods for
High-Temperature Characterization of Gypsum Boards and
1
Panels
This standard is issued under the fixed designation C1795; 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 These test methods describe three bench top test methods for measuring the thermophysical responses of gypsum boards
and panels when exposed to high temperatures. The test methods are:
1.1.1 High-temperature Core Cohesion—This test method evaluates the ability of the test specimen to withstand a specified
mechanical strain while exposed to elevated temperature.
1.1.2 High-temperature Shrinkage—This test method evaluates dimensional changes in the test specimen when exposed to
elevated temperatures.
1.1.3 High-temperature Thermal Insulation—This test method evaluates the rate of heat transfer through the thickness of the
test specimen by measuring the length of time required to heat the center of the test specimen over a specified temperature rise
when exposed to prescribed furnace conditions.
1.2 The test methods appear in the following order:
Test Method Section
High-temperature Core Cohesion 4
High-temperature Shrinkage 5
High-temperature Thermal Insulation 6
1.3 Units—The values stated in either inch-pound units or SI units (given in parenthesis) are to be regarded separately as
standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of
the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 While these tests are useful for evaluating fire properties of gypsum boards and panels, they are not suitable for predicting
the Test Methods E119 fire resistance performance of a specific gypsum protected assembly that has not previously been tested
2
in accordance with Test Methods E119 and correlated to these tests.
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 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.
1.7 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
2.1 ASTM Standards:
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
E119 Test Methods for Fire Tests of Building Construction and Materials
E631 Terminology of Building Constructions
1
This test method is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility of
Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products.
Current edition approved Dec. 1, 2015June 1, 2017. Published January 2016June 2017. Originally approved in 2005. Last previous edition approved in 2015 as C1795 – 15.
DOI: 10.1520/C1795-1510.1520/C1795-17.
2
Shipp, P. H., and Yu, Q., “Thermophysical Characterization of Type X Special Fire Resistant Gypsum Board,” Proceedings of the Fire and Materials 2011 Conference,
San Francisco, Jan. 1, 2011 – Feb. 2, 2011, Interscience Communications Ltd., London, UK, pp 417-426.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1795 − 17
2.2 Other Standards:
EN 520 Gypsum Plasterboards—Definitions, Requirements and Test Methods
3. Terminology
3.1 General—Refer to Terminologies C11 and E631 for standard terminology on gypsum and related building materials,
systems and building construction.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 Thermal Insulation Index (TI), n—a single value index
...
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: C1795 − 17
Standard Test Methods for
High-Temperature Characterization of Gypsum Boards and
1
Panels
This standard is issued under the fixed designation C1795; 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 ously been tested in accordance with Test Methods E119 and
2
correlated to these tests.
1.1 These test methods describe three bench top test meth-
1.5 This standard is used to measure and describe the
ods for measuring the thermophysical responses of gypsum
response of materials, products, or assemblies to heat and
boards and panels when exposed to high temperatures. The test
flame under controlled conditions, but does not by itself
methods are:
incorporate all factors required for fire hazard or fire risk
1.1.1 High-temperature Core Cohesion—This test method
assessment of the materials, products, or assemblies under
evaluates the ability of the test specimen to withstand a
actual fire conditions.
specified mechanical strain while exposed to elevated tempera-
1.6 This standard does not purport to address all of the
ture.
safety concerns, if any, associated with its use. It is the
1.1.2 High-temperature Shrinkage—This test method evalu-
responsibility of the user of this standard to establish appro-
ates dimensional changes in the test specimen when exposed to
priate safety and health practices and determine the applica-
elevated temperatures.
bility of regulatory limitations prior to use.
1.1.3 High-temperature Thermal Insulation—This test
1.7 This international standard was developed in accor-
method evaluates the rate of heat transfer through the thickness
dance with internationally recognized principles on standard-
of the test specimen by measuring the length of time required
ization established in the Decision on Principles for the
to heat the center of the test specimen over a specified
Development of International Standards, Guides and Recom-
temperature rise when exposed to prescribed furnace condi-
mendations issued by the World Trade Organization Technical
tions.
Barriers to Trade (TBT) Committee.
1.2 The test methods appear in the following order:
2. Referenced Documents
Test Method Section
2.1 ASTM Standards:
High-temperature Core Cohesion 4
C11 Terminology Relating to Gypsum and Related Building
High-temperature Shrinkage 5
Materials and Systems
High-temperature Thermal Insulation 6
E119 Test Methods for Fire Tests of Building Construction
1.3 Units—The values stated in either inch-pound units or
and Materials
SI units (given in parenthesis) are to be regarded separately as
E631 Terminology of Building Constructions
standard. The values stated in each system may not be exact
2.2 Other Standards:
equivalents; therefore, each system shall be used independently
EN 520 Gypsum Plasterboards—Definitions, Requirements
of the other. Combining values from the two systems may
and Test Methods
result in non-conformance with the standard.
1.4 While these tests are useful for evaluating fire properties
3. Terminology
of gypsum boards and panels, they are not suitable for
3.1 General—Refer to Terminologies C11 and E631 for
predicting the Test Methods E119 fire resistance performance
standard terminology on gypsum and related building
of a specific gypsum protected assembly that has not previ-
materials, systems and building construction.
3.2 Definitions of Terms Specific to This Standard:
1
This test method is under the jurisdiction of ASTM Committee C11 on Gypsum
and Related Building Materials and Systems and is the direct responsibility of
2
Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products. Shipp, P. H., and Yu, Q., “Thermophysical Characterization of Type X Special
Current edition approved June 1, 2017. Published June 2017. Originally Fire Resistant Gypsum Board,” Proceedings of the Fire and Materials 2011
approved in 2005. Last previous edition approved in 2015 as C1795 – 15. DOI: Conference, San Francisco, Jan. 1, 2011 – Feb. 2, 2011, Interscience Communica-
10.1520/C1795-17. tions Ltd., London, UK, pp 417-426.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1795 − 17
3.2.1 Thermal Insulation Index (TI), n—a single value index a mounting hole drilled in it near the outer extremity and is of
that denotes the rate of heating at the center of the Thermal sufficient length that the hook or wire by which the loading
Insulation Test specimen as determined by the elapsed time to weight is suspended from the strap does not
...
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