1、Designation: E2750 17 An American National StandardStandard Guide forExtension of Data from Penetration Firestop System TestsConducted in Accordance with ASTM E8141This standard is issued under the fixed designation E2750; the number immediately following the designation indicates the year oforigina
2、l adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide covers the extension of results obtained fromfire tests
3、 performed in accordance with Test Method E814 toapplications that have not been tested. Test Method E814evaluates the duration for which test specimens will contain afire, retain their integrity, or both during a predetermined firetest exposure. Firestops are intended for use in fire-resistivewalls
4、 and floors that are evaluated in conformance with TestMethod E119.NOTE 1Data obtained from firestops tested in accordance with TestMethods E119 with positive pressure can also be used.1.2 This guide is based on principles involving the exten-sion of test data using simple considerations. The accept
5、ance ofthese principles and their application is based substantially onan analogous worst-case proposition.1.3 These principles are only applicable to temperatureconditions represented by the standard time-temperature curvedescribed in Test Method E814, for systems falling within thescope of Test Me
6、thod E814. This test method is a fire-test-response standard.1.4 The types of building constructions which are part ofthis guide are as follows: floors, walls, partitions, floor/ceilingand roof/ceiling assemblies.1.5 This guide applies to:1.5.1 a single penetrating item, or1.5.2 multiple penetrating
7、 items.1.6 This guide does not apply to joints systems tested toE119, E1966 and E2307.1.7 Penetrating items can be one of the following: metallicpipe, non-metallic pipe, metallic tubing, non-metallic tubing,metallic conduit, non-metallic conduit, flexible metal conduit,cables, cable trays, bus ducts
8、, insulated pipes, insulated tubing,insulated conduit, insulated and non-insulated ducts, and struc-tural members.Metallic pipe, tubing or conduit 6.7Insulated pipe, tubing or conduit 6.8Non-metallic pipe, tubing or conduit 6.9 and 6.10Flexible metal conduit 6.11.1.4 and 6.11.1.5Cables 6.11Cable tra
9、y 6.12Bus duct 6.13Non-insulated duct 6.14Insulated duct 6.14.2Non-structural or service support member 6.15Mixed penetrations 6.161.8 Assemblies can be one of the following; concrete floorsor walls, masonry walls, gypsum walls, wood floor/ceilingassemblies, concrete floor/ceiling assemblies, chase
10、wall infloor/ceiling assemblies and fire-rated insulated walls.Concrete floors or walls 6.1Masonry walls 6.1Gypsum board wall assemblies 6.2Wood floor/ceiling assemblies 6.3Floor/ceiling assembly with concrete floor 6.4Chase wall intersecting a floor/ceiling assembly 6.5Fire-resistance insulated wal
11、ls 6.61.9 The extension of data using numerical calculationsbased on empirical data or theoretical models is not covered inthis guide.1.10 This guide does not cover the substitution of oneproprietary material for another proprietary material, or mate-rials for which fire-test data are not presently
12、available.1.11 This guide is used to predict or provide a quantitativemeasure of the fire hazard from a specified set of fire conditionsinvolving specific materials, products, or assemblies. Thisassessment does not necessarily predict the hazard of actualfires which involve conditions other than tho
13、se assumed in theanalysis.1.12 This guide is used to measure and describe the re-sponse of materials, products, or assemblies to heat and flameunder controlled conditions, but does not by itself incorporateall factors required for fire hazard or fire risk assessment of thematerials, products or asse
14、mblies under actual fire conditions.1.13 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.14 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is the1This standard guide is
15、 under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.11 on FireResistance.Current edition approved Nov. 1, 2017. Published December 2017. Originallyapproved in 2011. Last previous edition approved in 2013 as E2750-131. DOI:10.1520/E2750-
16、17.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of In
17、ternational Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1responsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limit
18、ations prior to use.1.15 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization
19、 TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationE119 Test Methods for Fire Tests of Building Constructionand MaterialsE176 Terminology of Fire StandardsE631 Terminology of Building ConstructionsE814 Test Method for
20、 Fire Tests of Penetration FirestopSystemsE1966 Test Method for Fire-Resistive Joint SystemsE2032 Guide for Extension of Data From Fire ResistanceTests Conducted in Accordance with ASTM E 119E2307 Test Method for Determining Fire Resistance ofPerimeter Fire Barriers Using Intermediate-Scale, Multi-s
21、tory Test Apparatus2.2 Other Standards:ACI 216 Fire Resistance of Concrete33. Terminology3.1 Definitions:3.1.1 For definitions used in this guide, refer to Terminolo-gies in E176, C168 and E631.3.1.2 For definitions of terms specific to this standard, referto E814 and E2032.4. Significance and Use4.
22、1 The methods and procedures set forth in this guide relateto the extension of the fire test results to firestop systems thathave not been tested.4.2 Users of this guide must have knowledge and under-standing of the provisions of Test Method E119 and TestMethod E814 including those pertaining to con
23、ditions ofacceptance.4.3 In order to apply some of the principles described in thisguide, reference to the original fire test report will be necessary.4.4 In Test Method E814, the specimens are subjected tospecific laboratory fire test exposure conditions. Differencesbetween the tested assembly and
24、the as-built assembly impactthe fire-test-response characteristics. Substitution of differenttest conditions also impacts the fire-test-response characteris-tics.4.5 The extension of data is valid only for the fire testexposure described in Test Method E814.4.6 This guide shall not be used to extrap
25、olate the fireresistance rating to a higher value.4.7 Limitations:4.7.1 The extension of fire resistance data is to be used onlyfor changes to the tested specimen that fall within normal andreasonable limits of accepted construction practices.4.7.2 Conclusions derived from using this guide are valid
26、only if the identified change is the only change in theconstruction or properties of the components.4.7.3 Evaluation of changes to the fire-resistive assembly inwhich the firestop is installed is governed by the Extension ofData principles in Guide E2032.4.8 The statements in this guide are based on
27、 a singlechange to a system.NOTE 2It is possible that multiple changes have a different cumulativeeffect than that of individual changes evaluated separately. The principlescontained herein may provide useful information for the application ofsound engineering principles to evaluate the effect of mu
28、ltiple differencesbetween tested and installed firestops.4.9 Extensions of data using this document shall be done byindividuals possessing the following minimum qualificationsand attributes:4.9.1 an understanding of the Test Method E814 testprocedure,4.9.2 an understanding of the fire behavior of fi
29、restopmaterials,4.9.3 knowledge of the elements of the construction to beprotected, and4.9.4 an understanding of the probable behavior of theunderlying construction and the recommended firestop systemprotecting it, were they to be subjected to testing in accordancewith Test Method E814.4.10 The pers
30、on performing evaluations based on tested orlisted firestops shall be one of the following:4.10.1 the firestop manufacturers knowledgeable and quali-fied technical personnel,4.10.2 a registered professional engineer, or Fire ProtectionEngineer, knowledgeable in firestopping systems,4.10.3 an indepen
31、dent testing agency or a listing agency, or4.10.4 technical personnel with experience in firestopping.5. General Principles5.1 The principles in this section shall apply to all subse-quent sections.5.2 The rating criteria and conditions of acceptance as setout in Test Method E814 shall be used in th
32、e evaluation of theeffect of the change to the firestop system.5.3 Conclusions derived from using this guide indicate onlywhether or not a change in the application or design of thefirestop system “reduces” the fire resistance rating.5.4 The firestop system is limited to the maximum dimen-sions of t
33、he opening in the assembly that have been fire testedaccording to E814 or E119 under positive furnace pressure asspecified in E814.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informa
34、tion, refer to the standards Document Summary page onthe ASTM website.3Available from American Concrete Institute (ACI), P.O. Box 9094, FarmingtonHills, MI 48333-9094, http:/www.concrete.org.E2750 1725.5 The firestop product(s) is limited to the product(s) firetested.5.6 Angled PenetrationsWhere the
35、 uninsulated penetrat-ing item in the individual design is indicated as a metallic pipe,conduit, tube, duct or cable, and the firestop system consists atminimum of a fill material (such as sealants, putty, or mortar),the penetrant may pass through the opening in the wall or floorassembly at any angl
36、e, provided the annular space is main-tained on both sides of the wall or floor assembly and all otherspecifications in the design are satisfied. In all other cases,except where otherwise indicated in the system, the penetratingitem shall penetrate the wall or floor assembly at a 90 angle.6. Princip
37、les for FirestopsNOTE 3Information regarding the fire resistance of the wall or floorassemblies can be found in Guide E2032 or ACI 216. See Appendix X3for additional information.6.1 Concrete or Masonry Assemblies:6.1.1 Increase in thickness of the assembly will not decreasethe fire resistance of the
38、 firestop. Exception: Where it is knownor suspected that locating a material further from the fire or onthe unexposed side of the assembly will reduce the F-rating.6.1.2 Firestop systems tested in concrete floor assembliescan be used in concrete or masonry wall assemblies providingthat they are inst
39、alled symmetrically on both sides of the wall.6.1.2.1 Firestop systems need not be installed on both sidesof the wall assembly if they are symmetrical and equidistantfrom both surfaces.6.1.3 Firestop systems fire tested in wall assemblies cannotbe installed in floor assemblies unless fire tested acc
40、ording toTest Method E814 as a floor assembly.6.1.4 Firestop systems can be used in concrete or masonryassemblies of equal or lower fire resistance as long as theFirestop system tested design is not modified in relation tofirestop thickness, bonding and support, and is not modified inrelation to the
41、 assembly thickness.6.2 Gypsum Board Wall Assemblies:6.2.1 Increase in the depth of studs or thickness or numberof layers of gypsum board will not decrease the fire resistanceof the firestop.Exception 1: Where the firestop materials are atdifferent positions within the assembly relative to the heats
42、ource.Exception 2: In assemblies where the active components onboth sides of the assembly contribute to the test performance.NOTE 4Where it is known or suspected that locating a material furtherfrom the fire or on the unexposed side of the assembly will reduce theresistance to the test.Exception 3:
43、Where it is known that locating a material onthe non-fire side of the assembly further from the fire willreduce the performance of the firestop.6.2.2 Firestop systems cannot be used in assemblies oflower resistance ratings without fire testing.Exception: A firestop system that is tested and listed f
44、or asymmetrical gypsum wall assembly that includes multiplelayers of gypsum board per side, can be used to maintain thefire resistance rating of a gypsum wall assembly that includesfewer layers of gypsum board per side, as long as the sealantdepth in the listed system, does not exceed the thickness
45、of thatreduced number of layers of gypsum board.6.2.3 Symmetrical Installations:6.2.3.1 The results of the fire resistance test are deemed tobe applicable to a similar type of untested system providing thefollowing are true.(1) The maximum dimension of the opening is not in-creased.(2) The total are
46、a of the opening is not increased.(3) Neither the firestop product(s) or damming material ischanged.(4) The thickness of neither the firestop product(s) ordamming material is decreased.6.2.3.2 Refer to 6.1 for restrictions related to changes in thesupporting construction.6.3 Wood Deck Floor/Ceiling
47、Assemblies:6.3.1 The following changes, individually or incombination, would not reduce the F-rating, provided that: (1)the firestop is in the same position relative to the heat source,and (2) the firestop is at least in contact with the same materialas tested;6.3.1.1 Increase in the depth of joists
48、 or trusses,6.3.1.2 Increase in thickness or number of layers of gypsumboard,6.3.1.3 Increase in the overall assembly thickness due toadditional floor coverings or ceiling finishes.Exception 1: In assemblies where there are firestop materialsnot part of the exposed side that is part of the tested or
49、 listedfirestop configuration.Exception 2: Where it is known or suspected that locating amaterial further from the fire or on the unexposed side of theassembly will reduce the resistance to the test.6.3.2 Firestop systems cannot be used in assemblies oflower resistance ratings without fire testing. Exception: Afirestop system that is tested and listed for a floor/ceilingassembly that includes multiple layers of gypsum board, can beused to maintain the fire resistance rating of a floor/ceilingassembly that includes fewer layers of gypsum board, as longas the sealant
