ASTM E2032-09(2017)

Standard Guide for Extension of Data From Fire Resistance Tests Conducted in Accordance with ASTM E 119

SIGNIFICANCE AND USE
4.1 The methods and procedures set forth in this guide relate to the extension of the fire resistance ratings obtained from particular fire tested specimens to constructions that have not been tested.  
4.2 Users of this guide must have knowledge and understanding of the provisions of Test Method E119 including those pertaining to conditions of acceptance.  
4.3 In order to apply some of the principles described in this guide, reference to the original fire test report will be necessary.  
4.4 In Test Method E119, the specimens are subjected to specific laboratory fire test exposure conditions. Substitution of different test conditions or changes in the end use conditions have the ability to change the measured fire-test-response characteristics. Therefore, the extensions of data are valid only for the fire test exposure conditions described in Test Method E119,.
SCOPE
1.1 This guide covers the extension of fire resistance ratings obtained from fire tests performed in accordance with Test Method E119 to constructions that have not been tested. Test Method E119 evaluates the duration for which test specimens will contain a fire, retain their standard integrity, or both during a predetermined test exposure.  
1.2 This guide is based on principles involving the extension of test data using simple considerations. The acceptance of these principles and their application is based substantially on an analogous worst case proposition.  
1.3 These principles are only applicable to temperature conditions represented by the standard time-temperature curve described in Test Method E119. Test Method E119 is a fire-test-response standard.  
1.4 The types of building constructions which are the subject of this guide are categorized as follows: beams; floor and roof assemblies; columns; and walls and partitions. Floor and roof assemblies include such assemblies with ceiling protective membranes.  
1.5 The extension of test data using numerical calculations based on empirical data or theoretical models is not covered in this guide.  
1.6 This guide does not cover the substitution of one proprietary material for another proprietary material, or materials for which fire test data are not presently available.  
1.7 This guide does not purport to be comprehensive in its treatment of non-proprietary modifications of tested constructions. Engineering evaluation or tests are recommended for assessing modifications not specifically covered in this guide.  
1.8 The values stated in SI units are to be regarded as standard.  
1.9 This standard is used to determine certain fire-test responses of materials, products, or assemblies to heat and flame under controlled conditions by using results obtained from fire-test-response standards. The results obtained from using this standard do not by themselves constitute measures of fire hazard or fire risk.  
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.  
1.11 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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2017
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• Technical Committee: E05 - Fire Standards
• Drafting Committee: E05.11 - Fire Resistance

Standards Content (Sample)

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: E2032 − 09 (Reapproved 2017) An American National Standard
Standard Guide for
Extension of Data From Fire Resistance Tests Conducted in
Accordance with ASTM E 119
This standard is issued under the fixed designation E2032; 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 1.9 This standard is used to determine certain fire-test
responses of materials, products, or assemblies to heat and
1.1 This guide covers the extension of fire resistance ratings
flame under controlled conditions by using results obtained
obtained from fire tests performed in accordance with Test
from fire-test-response standards. The results obtained from
Method E119 to constructions that have not been tested. Test
using this standard do not by themselves constitute measures of
Method E119 evaluates the duration for which test specimens
fire hazard or fire risk.
will contain a fire, retain their standard integrity, or both during
1.10 This standard does not purport to address all of the
a predetermined test exposure.
safety concerns, if any, associated with its use. It is the
1.2 This guide is based on principles involving the exten-
responsibility of the user of this standard to establish appro-
sionoftestdatausingsimpleconsiderations.Theacceptanceof
priate safety and health practices and determine the applica-
these principles and their application is based substantially on
bility of regulatory limitations prior to use.
an analogous worst case proposition.
1.11 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.3 These principles are only applicable to temperature
ization established in the Decision on Principles for the
conditions represented by the standard time-temperature curve
Development of International Standards, Guides and Recom-
described in Test Method E119. Test Method E119 is a
mendations issued by the World Trade Organization Technical
fire-test-response standard.
Barriers to Trade (TBT) Committee.
1.4 The types of building constructions which are the
subject of this guide are categorized as follows: beams; floor
2. Referenced Documents
and roof assemblies; columns; and walls and partitions. Floor
2.1 ASTM Standards:
and roof assemblies include such assemblies with ceiling
C168 Terminology Relating to Thermal Insulation
protective membranes.
C553 Specification for Mineral Fiber Blanket Thermal Insu-
1.5 The extension of test data using numerical calculations
lation for Commercial and Industrial Applications
based on empirical data or theoretical models is not covered in
C612 Specification for Mineral Fiber Block and Board
this guide.
Thermal Insulation
E119 Test Methods for Fire Tests of Building Construction
1.6 This guide does not cover the substitution of one
and Materials
proprietary material for another proprietary material, or mate-
E176 Terminology of Fire Standards
rials for which fire test data are not presently available.
E631 Terminology of Building Constructions
1.7 This guide does not purport to be comprehensive in its
E1264 Classification for Acoustical Ceiling Products
treatment of non-proprietary modifications of tested construc-
E1513 Practice for Application of Sprayed Fire-Resistive
tions. Engineering evaluation or tests are recommended for
Materials (SFRMs)
assessing modifications not specifically covered in this guide.
3. Terminology
1.8 The values stated in SI units are to be regarded as
standard.
3.1 Definitions:
3.1.1 For definitions used in this guide, refer to Terminolo-
gies E176, C168, E631, and Test Method E119.
This standard guide is under the jurisdiction ofASTM Committee E05 on Fire
Standards and is the direct responsibility of Subcommittee E05.11 on Fire
Resistance. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2017. Published April 2017. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approvedin1999.Lastpreviouseditionapprovedin2013asE2032–09(2013).DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/E2032-09R17. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E2032 − 09 (2017)
3.1.2 mineral fiber insulation, n—insulation composed prin- 3.2.11 material, generic, n—is one for which a nationally
cipally of fibers manufactured from rock, slag, or glass recognized Standard Specification exists.
processed from molten state into fibrous form to comprise
3.2.12 material proprietary, n—is one whose fire perfor-
flexiblebattsorblankets,rigidorsemi-rigidblocksandboards,
mance characteristics are determined in consideration of a
or loose fill insulations, with or without binder.
formulation or process of production that is proprietary.
3.1.2.1 Discussion—Mineral fiber blanket thermal insula-
3.2.13 non-composite, n—as applied to loadbearing
tions and mineral fiber block and board thermal insulations are
elements,structuralinteractionbetweencontiguouselementsis
classified into various types based upon the maximum use
assumed not to exist in the evaluation of load capacity.
temperature, which can range from 204°C (400°F) to 982°C
3.2.14 sand-lightweight concrete, n—concrete made with a
(1800°F), and the apparent thermal conductivity (See Specifi-
combination of expanded clay, shale, slag, or slate or sintered
cations C553 and C612).
fly ash and natural sand and generally weighing between 1680
3.1.3 unit weight, n—as applied to concrete, weight per unit
and 1920 kg/m (105 to 120 pcf).
volume.
3.2.15 specified load, n—as applied to loadbearing
3.2 Definitions of Terms Specific to This Standard:
elements, the test load applied to the element in a Test Method
3.2.1 acoustical ceiling panel, n—a form of a prefabricated
E119 test.
sound absorbing ceiling element used with exposed suspension
3.2.15.1 Discussion—In Test Method E119 testing, the
systems (see Specification E1264).
specified load is generally the design load (see 3.2.6).
3.2.2 acoustical ceiling tile, n—a form of a prefabricated
3.2.16 test specimen, n—the specific construction assembly
sound absorbing ceiling element used with concealed or
that was tested in accordance with Test Method E119.
semi-exposed suspension systems, stapling, or adhesive bond-
3.2.17 transfer, n—the process of substituting a loadbearing
ing (see Specification E1264).
element from one test specimen for the loadbearing element in
3.2.3 beams, n—all horizontally oriented structural mem-
another test specimen, or utilizing a loadbearing element from
bersemployedinbuildingconstructionandknownvariouslyas
onetestspecimenforuseinanothertestspecimenthatdoesnot
beams, joists, or girders.
include a loadbearing element.
3.2.4 ceiling protective membrane, n—a ceiling membrane
3.2.18 ultimate capacity, n—as applied to loadbearing
attached to or suspended from the structural members of the
elements, the actual maximum load carrying capacity of an
floor or ceiling assembly, usually by hanger wire or threaded
element based on properties specific to the material constitut-
rods, consisting of a grid suspension system with lay-in ceiling
ing the element.
panels or a grid of steel furring channels to which the ceiling
membrane is directly attached, intended to provide fire
4. Significance and Use
protection, acoustical and or aesthetic enhancements, or both.
4.1 Themethodsandproceduressetforthinthisguiderelate
3.2.5 composite, n—as applied to loadbearing elements, an
to the extension of the fire resistance ratings obtained from
interaction between structural components which is to be taken
particular fire tested specimens to constructions that have not
into account in the evaluation of load capacity.
been tested.
3.2.6 design load, n—the intended maximum design load
4.2 Users of this guide must have knowledge and under-
condition allowed by design under appropriate nationally
standingoftheprovisionsofTestMethodE119includingthose
recognized structural design criteria.
pertaining to conditions of acceptance.
3.2.7 directlyappliedfireresistivecoating,n—materialsthat
4.3 In order to apply some of the principles described in this
are normally sprayed onto substrates to provide fire-resistive
guide,referencetotheoriginalfiretestreportwillbenecessary.
protection of the substrates.
4.4 In Test Method E119, the specimens are subjected to
3.2.7.1 Discussion—These coatings are called sprayed fire-
specificlaboratoryfiretestexposureconditions.Substitutionof
resistive materials in Standard Practice E1513 and related
different test conditions or changes in the end use conditions
standards.
have the ability to change the measured fire-test-response
3.2.8 equivalent thickness, n—the calculated solid thickness
characteristics. Therefore, the extensions of data are valid only
of concrete or masonry for purposes of determining fire
for the fire test exposure conditions described in Test Method
resistance ratings of barrier elements on the basis of heat
E119,.
transmission end-point criteria.
5. General Principles
3.2.9 insulation, n—a material that is normally added to an
assembly to provide resistance to heat flow for purpose of
5.1 The same criteria or conditions of acceptance as set out
energy conservation.
in the Test Method E119 and followed in the establishment of
3.2.9.1 Discussion—Insulation materials are also used to
the fire resistance rating of the original test specimen shall be
improve sound control or improve fire resistance.
used in the evaluation of the effect of the modification or
3.2.10 lightweight aggregate concrete, n—concrete made substitution of components in a test specimen.
with aggregates of expanded clay, shale, slag, or slate or 5.1.1 The criteria or conditions of acceptance for the evalu-
sintered fly ash, and weighing 1360 to 1840 kg/m (85 to 115 ation of modified test specimens shall likewise be in accor-
pcf). dance with the appropriate sections of Test Method E119.
E2032 − 09 (2017)
5.2 Statements in this guide only indicate whether a change 5.5 Composite and Non-Composite Design:
intheconstructioneither“canreduce”or“doesnotreduce”the
5.5.1 Fire resistance ratings of beams and floors or roofs
fire resistance rating.
testedwithcompositedesignbetweenthebeamandtheflooror
roof is not reduced in actual building constructions designed
5.3 Limitations:
for either composite or non-composite action.
5.3.1 The extension of fire resistance ratings is valid only
5.5.2 Conversely, fire resistance ratings of beams and floors
for changes to the tested specimen that fall within normal and
or roofs tested in non-composite design shall be limited to
reasonable limits of standard construction practices.
building constructions designed for non-composite action.
5.3.2 Statements are valid only if the identified changes are
the only changes in the construction or properties of the
6. Principles Pertaining to Heat Transfer Characteristics
components.
of Concrete
5.3.3 It is possible that multiple changes have a different
cumulative effect than that of individual changes applied
6.1 Theprovisionsinthissectionareapplicableonlyasthey
separately.
affect the transfer of heat through concrete. Considerations
5.3.4 Unless otherwise indicated, statements are only valid
involving structural fire resistance are addressed in other
if the change identified does not change the specified load.
sections.
5.3.4.1 Provisions in this guide involving the ratio of
6.2 For concrete test specimens where temperature rise on
specifiedloadtodesignloadassumethatthesafetyfactor(ratio
the unexposed surface of a concrete slab (wall, floor, or roof)
of ultimate capacity to design load) inherent in the design
is the governing criterion, the following modifications do not
procedure is constant.
reduce the fire resistance rating of the assembly:
5.3.4.2 Increasing the ratio of the maximum applied load
6.2.1 Decrease in concrete unit weight;
(specified load, dead plus live load) to the design load of an
6.2.2 Substitutionofsandedlight-weightaggregateconcrete
element beyond that realized in the test specimen can reduce
or light-weight aggregate concrete for normal weight concrete;
the fire resistance rating.
also, substitution of carbonate aggregate for siliceous aggre-
5.3.5 Provisions in this guide pertaining to concrete only
gate for either the coarse or the fine aggregate used in the
apply to concrete with a compressive strength of 55.1 MPa
concrete;
(8000 psi) or less.
6.2.3 Decrease in the nominal maximum size of coarse
5.4 Restrained/Unrestrained Specimens:
aggregate within a given concrete aggregate type;
5.4.1 The fire resistance rating of a beam, floor, or roof test
6.2.4 Increaseordecreaseinthecompressivestrengthofthe
specimen is related to either a restrained or unrestrained
concrete;
condition, or both. A restrained condition in a fire test is
6.2.5 Change in the type of portland cement, flyash or
considered to be one in which the displacement or rotation due
admixtures used in the concrete;
to fire induced thermal expansion of a load bearing element is
6.2.6 Changes in the type or amount of reinforcement;
resisted by forces external to the element. An unrestrained
6.2.7 Increase in the equivalent thickness of the slab for a
condition in a fire test is one in which the load bearing element
given type of aggregate concrete; and
is free to expand and rotate at its supports or is not subject to
6.2.8 Changeinslabdesignorrestraintconditions,provided
substantial thermal expansion and its resulting restraining
the equivalent thickness of slab does not decrease.
forces.
6.2.9 In slabs or constructions incorporating joints other
5.4.2 Ratings of restrained beam, floor, or roof test speci-
than construction joints, changes in joint design provided that
mens are intended for application to elements which are
the substituted joint design has been tested in a Test Method
considered to be suitable for use in restrained building con-
E119 test and met the required fire resistance rating.
struction where the surrounding or supporting structure is
6.2.10 For slabs containing hollow cores or air cavities,
capable of resisting substantial thermal expansion throughout
filling of cores or voids with non-combustible insulation
the range of anticipated elevated fire conditions.
material;
5.4.3 Ratings of unrestrained beam, floor or roof test speci-
mens are intended for application to elements which are
6.3 For temperature rise to be the governing criteria, it is
considered to be suitable fo
...

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: E2032 − 09 (Reapproved 2013) E2032 − 09 (Reapproved 2017)An American National Standard
Standard Guide for
Extension of Data From Fire Resistance Tests Conducted in
Accordance with ASTM E 119
This standard is issued under the fixed designation E2032; 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 guide covers the extension of fire resistance ratings obtained from fire tests performed in accordance with Test Method
E119 to constructions that have not been tested. Test Method E119 evaluates the duration for which test specimens will contain
a fire, retain their standard integrity, or both during a predetermined test exposure.
1.2 This guide is based on principles involving the extension of test data using simple considerations. The acceptance of these
principles and their application is based substantially on an analogous worst case proposition.
1.3 These principles are only applicable to temperature conditions represented by the standard time-temperature curve described
in Test Method E119. Test Method E119 is a fire-test-response standard.
1.4 The types of building constructions which are the subject of this guide are categorized as follows: beams; floor and roof
assemblies; columns; and walls and partitions. Floor and roof assemblies include such assemblies with ceiling protective
membranes.
1.5 The extension of test data using numerical calculations based on empirical data or theoretical models is not covered in this
guide.
1.6 This guide does not cover the substitution of one proprietary material for another proprietary material, or materials for which
fire test data are not presently available.
1.7 This guide does not purport to be comprehensive in its treatment of non-proprietary modifications of tested constructions.
Engineering evaluation or tests are recommended for assessing modifications not specifically covered in this guide.
1.8 The values stated in SI units are to be regarded as standard.
1.9 This standard is used to determine certain fire-test responses of materials, products, or assemblies to heat and flame under
controlled conditions by using results obtained from fire-test-response standards. The results obtained from using this standard do
not by themselves constitute measures of fire hazard or fire risk.
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.
1.11 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:
C168 Terminology Relating to Thermal Insulation
C553 Specification for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications
C612 Specification for Mineral Fiber Block and Board Thermal Insulation
E119 Test Methods for Fire Tests of Building Construction and Materials
E176 Terminology of Fire Standards
This standard guide 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 Aug. 1, 2013April 1, 2017. Published September 2013April 2017. Originally approved in 1999. Last previous edition approved in 20092013 as
E2032E2032–09(2013).–09. DOI: 10.1520/E2032-09R13.10.1520/E2032-09R17.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
E2032 − 09 (2017)
E631 Terminology of Building Constructions
E1264 Classification for Acoustical Ceiling Products
E1513 Practice for Application of Sprayed Fire-Resistive Materials (SFRMs)
3. Terminology
3.1 Definitions:
3.1.1 For definitions used in this guide, refer to Terminologies E176, C168, E631, and Test Method E119.
3.1.2 mineral fiber insulation, n—insulation composed principally of fibers manufactured from rock, slag, or glass processed
from molten state into fibrous form to comprise flexible batts or blankets, rigid or semi-rigid blocks and boards, or loose fill
insulations, with or without binder.
3.1.2.1 Discussion—
Mineral fiber blanket thermal insulations and mineral fiber block and board thermal insulations are classified into various types
based upon the maximum use temperature, which can range from 204°C (400°F) to 982°C (1800°F), and the apparent thermal
conductivity (See Specifications C553 and C612).
3.1.3 unit weight, n—as applied to concrete, weight per unit volume.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 acoustical ceiling panel, n—a form of a prefabricated sound absorbing ceiling element used with exposed suspension
systems (see Specification E1264).
3.2.2 acoustical ceiling tile, n—a form of a prefabricated sound absorbing ceiling element used with concealed or semi-exposed
suspension systems, stapling, or adhesive bonding (see Specification E1264).
3.2.3 beams, n—all horizontally oriented structural members employed in building construction and known variously as beams,
joists, or girders.
3.2.4 ceiling protective membrane, n—a ceiling membrane attached to or suspended from the structural members of the floor
or ceiling assembly, usually by hanger wire or threaded rods, consisting of a grid suspension system with lay-in ceiling panels or
a grid of steel furring channels to which the ceiling membrane is directly attached, intended to provide fire protection, acoustical
and or aesthetic enhancements, or both.
3.2.5 composite, n—as applied to loadbearing elements, an interaction between structural components which is to be taken into
account in the evaluation of load capacity.
3.2.6 design load, n—the intended maximum design load condition allowed by design under appropriate nationally recognized
structural design criteria.
3.2.7 directly applied fire resistive coating, n—materials that are normally sprayed onto substrates to provide fire-resistive
protection of the substrates.
3.2.7.1 Discussion—
These coatings are called sprayed fire-resistive materials in Standard Practice E1513 and related standards.
3.2.8 equivalent thickness, n—the calculated solid thickness of concrete or masonry for purposes of determining fire resistance
ratings of barrier elements on the basis of heat transmission end-point criteria.
3.2.9 insulation, n—a material that is normally added to an assembly to provide resistance to heat flow for purpose of energy
conservation.
3.2.9.1 Discussion—
Insulation materials are also used to improve sound control or improve fire resistance.
3.2.10 lightweight aggregate concrete, n—concrete made with aggregates of expanded clay, shale, slag, or slate or sintered fly
ash, and weighing 1360 to 1840 kg/m (85 to 115 pcf).
3.2.11 material, generic, n—is one for which a nationally recognized Standard Specification exists.
3.2.12 material proprietary, n—is one whose fire performance characteristics are determined in consideration of a formulation
or process of production that is proprietary.
3.2.13 non-composite, n—as applied to loadbearing elements, structural interaction between contiguous elements is assumed not
to exist in the evaluation of load capacity.
E2032 − 09 (2017)
3.2.14 sand-lightweight concrete, n—concrete made with a combination of expanded clay, shale, slag, or slate or sintered fly
ash and natural sand and generally weighing between 1680 and 1920 kg/m (105 to 120 pcf).
3.2.15 specified load, n—as applied to loadbearing elements, the test load applied to the element in a Test Method E119 test.
3.2.15.1 Discussion—
In Test Method E119 testing, the specified load is generally the design load (see 3.2.6).
3.2.16 test specimen, n—the specific construction assembly that was tested in accordance with Test Method E119.
3.2.17 transfer, n—the process of substituting a loadbearing element from one test specimen for the loadbearing element in
another test specimen, or utilizing a loadbearing element from one test specimen for use in another test specimen that does not
include a loadbearing element.
3.2.18 ultimate capacity, n—as applied to loadbearing elements, the actual maximum load carrying capacity of an element based
on properties specific to the material constituting the element.
4. Significance and Use
4.1 The methods and procedures set forth in this guide relate to the extension of the fire resistance ratings obtained from
particular fire tested specimens to constructions that have not been tested.
4.2 Users of this guide must have knowledge and understanding of the provisions of Test Method E119 including those
pertaining to conditions of acceptance.
4.3 In order to apply some of the principles described in this guide, reference to the original fire test report will be necessary.
4.4 In Test Method E119, the specimens are subjected to specific laboratory fire test exposure conditions. Substitution of
different test conditions or changes in the end use conditions have the ability to change the measured fire-test-response
characteristics. Therefore, the extensions of data are valid only for the fire test exposure conditions described in Test Method E119,.
5. General Principles
5.1 The same criteria or conditions of acceptance as set out in the Test Method E119 and followed in the establishment of the
fire resistance rating of the original test specimen shall be used in the evaluation of the effect of the modification or substitution
of components in a test specimen.
5.1.1 The criteria or conditions of acceptance for the evaluation of modified test specimens shall likewise be in accordance with
the appropriate sections of Test Method E119.
5.2 Statements in this guide only indicate whether a change in the construction either “can reduce” or “does not reduce” the fire
resistance rating.
5.3 Limitations:
5.3.1 The extension of fire resistance ratings is valid only for changes to the tested specimen that fall within normal and
reasonable limits of standard construction practices.
5.3.2 Statements are valid only if the identified changes are the only changes in the construction or properties of the components.
5.3.3 It is possible that multiple changes have a different cumulative effect than that of individual changes applied separately.
5.3.4 Unless otherwise indicated, statements are only valid if the change identified does not change the specified load.
5.3.4.1 Provisions in this guide involving the ratio of specified load to design load assume that the safety factor (ratio of ultimate
capacity to design load) inherent in the design procedure is constant.
5.3.4.2 Increasing the ratio of the maximum applied load (specified load, dead plus live load) to the design load of an element
beyond that realized in the test specimen can reduce the fire resistance rating.
5.3.5 Provisions in this guide pertaining to concrete only apply to concrete with a compressive strength of 55.1 MPa (8000 psi)
or less.
5.4 Restrained/Unrestrained Specimens:
5.4.1 The fire resistance rating of a beam, floor, or roof test specimen is related to either a restrained or unrestrained condition,
or both. A restrained condition in a fire test is considered to be one in which the displacement or rotation due to fire induced thermal
expansion of a load bearing element is resisted by forces external to the element. An unrestrained condition in a fire test is one
in which the load bearing element is free to expand and rotate at its supports or is not subject to substantial thermal expansion and
its resulting restraining forces.
5.4.2 Ratings of restrained beam, floor, or roof test specimens are intended for application to elements which are considered to
be suitable for use in restrained building construction where the surrounding or supporting structure is capable of resisting
substantial thermal expansion throughout the range of anticipated elevated fire conditions.
E2032 − 09 (2017)
5.4.3 Ratings of unrestrained beam, floor or roof test specimens are intended for application to elements which are considered
to be suitable for use in unrestrained and restrained building construction where the surrounding or supporting structure is or is
not capable of resisting substantial thermal expansion throughout the range of anticipated elevated fire conditions.
5.4.3.1 The application of unrestrained classified beams, floors or roofs for use in building constructions with end restraint does
not reduce the fire resistance rating.
NOTE 1—See Appendix X3 “Guide for Determining Conditions of Restraint for Floor and Roof Assemblies and for Individual Beams” in Test Method
E119 for assistance in determining the conditions of thermal restraint applicable to floor and roof constructions and individual beams in actual building
construction.
5.5 Composite and Non-Composite Design:
5.5.1 Fire resistance ratings of beams and floors or roofs tested with composite design between the beam and the floor or roof
is not reduced in actual building constructions designed for either composite or non-composite action.
5.5.2 Conversely, fire resistance ratings of beams and floors or roofs tested in non-composite design shall be limited to building
constructions designed for non-composite action.
6. Principles Pertaining to Heat Transfer Characteristics of Concrete
6.1 The provisions in this section are applicable only as they affect the transfer of heat through concrete. Considerations
involving structural fire resistance are addressed in other sections.
6.2 For concrete test specimens where temperature rise on the unexposed surface of a concrete slab (wall, floor, or roof) is the
governing criterion, the following modifications do not reduce the fire resistance rating of the
...