1、Designation: E2750 11An American National StandardStandard Guide forExtension of Data For Penetrations Seals1This standard is issued under the fixed designation E2750; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t 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 performed in accordance with Test Method E814 toapplic
3、ations 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 and floors that are evaluated in conformance with Test
4、Method 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 acceptance ofthese principles and their application is based
5、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 Method E814. This test method is a fire-test-response sta
6、ndard.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 items.1.6 This guide does not apply to joints systems
7、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, insulated pipes, insulated tubing,insulated conduit,
8、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 tray 6.12Bus duct 6.13Non-insulated duct 6.14Insulated duc
9、t 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 wall infloor/ceiling assemblies and fire-rated insulate
10、d 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 walls 6.61.9 The extension of data using numerical calcula
11、tionsbased 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 available.1.11 This guide is used to predict or provide
12、 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 those assumed in theanalysis.1.12 This guide is used to me
13、asure 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 assemblies under actual fire conditions.1.13 The values sta
14、ted in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1This standard guide is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.11 on FireResistance.Current edition approved May 1, 20
15、11. Published June 2011. DOI: 10.1520/E2750-11.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.1.14 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the
16、user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationE119 Test Methods for Fire Tests of Building Constructionand M
17、aterialsE176 Terminology of Fire StandardsE631 Terminology of Building ConstructionsE814 Test Method for 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
18、 Test Method for Determining Fire Resistance ofPerimeter Fire Barriers Using Intermediate-Scale, Multi-story 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.
19、1.2 For definitions of terms specific to this standard, referto E814 and E2032.4. Significance and Use4.1 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 un
20、der-standing of the provisions of Test Method E119 and TestMethod E814 including those pertaining to conditions 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 su
21、bjected tospecific laboratory fire test exposure conditions. Differencesbetween the tested assembly and 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
22、 only for the fire testexposure described in Test Method E814.4.6 This guide shall not be used to extrapolate 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 andreason
23、able limits of accepted construction practices.4.7.2 Conclusions derived from using this guide are validonly 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
24、governed by the Extension ofData principles in Guide E2032.4.8 The statements in this guide are based on a singlechange to a system.NOTE 2It is possible that multiple changes have a different cumula-tive effect than that of individual changes evaluated separately. Theprinciples contained herein may
25、provide useful information for theapplication of sound engineering principles to evaluate the effect ofmultiple differences between tested and installed firestops.4.9 Extensions of data using this document shall be done byindividuals possessing the following minimum qualificationsand attributes:4.9.
26、1 an understanding of the Test Method E814 test proce-dure,4.9.2 an understanding of the fire behavior of firestopmaterials,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 firesto
27、p systemprotecting it, were they to be subjected to testing in accordancewith Test Method E814.4.10 The person 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 registere
28、d professional engineer, or Fire ProtectionEngineer, knowledgeable in firestopping systems,4.10.3 an independent 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 sec
29、tions.5.2 The rating criteria and conditions of acceptance as setout in Test Method E814 shall be used in the 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 sy
30、stem “reduces” the fire resistance rating.5.4 The firestop system is limited to the maximum dimen-sions of the opening in the assembly that have been fire testedaccording to E814 or E119 under positive furnace pressure asspecified in E814.5.5 The firestop product(s) is limited to the product(s) fire
31、tested.5.6 Angled PenetrationsWhere the penetrating item isindicated as a metallic pipe, conduit, tube, duct or cable, andthe firestop system consists of a fill material (such as sealants,putty, or mortar) and a packing material, the penetrant maypass through the opening in the wall or floor assembl
32、y at an2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Concrete Institute (ACI), P.O
33、. Box 9094, FarmingtonHills, MI 48333-9094, http:/www.concrete.org.E2750 112angle, provided the annular space is maintained on both sidesof the wall or floor assembly. In all other cases, except whereotherwise indicated in the system, the penetrating item shallpenetrate the wall or floor assembly at
34、 a 90 angle.6. Principles 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
35、fire resistance of the firestop.Exception: Where it is known or suspected that locating amaterial further from the fire or on the unexposed side of theassembly will reduce the F-rating.6.1.2 Firestop systems tested in concrete floor assembliescan be used in concrete or masonry wall assemblies provid
36、ingthat they are installed 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 u
37、nless fire tested according 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 modif
38、ied inrelation to the 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 at differentpositions within the assembly
39、relative to the heat source.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 materialfurther from the fire or on the unexposed side of the assembly will reducethe resistance to
40、the test.Exception 3: 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
41、is tested and listed for 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
42、 exceed the thickness 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-cre
43、ased.(2) The total area 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 Wo
44、od Deck Floor/Ceiling Assemblies:6.3.1 The following changes, individually or in combina-tion, would not reduce the F-rating, provided that: (1) thefirestop is in the same position relative to the heat source, and(2) the firestop is at least in contact with the same material astested;6.3.1.1 Increas
45、e in the depth of joists 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
46、is part of the tested or 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 rating
47、s without fire testing.Exception: A firestop system that is tested and listed for afloor/ceiling assembly that includes multiple layers of gypsumboard, can be used to maintain the fire resistance rating of afloor/ceiling assembly that includes fewer layers of gypsumboard, as long as the sealant dept
48、h in the listed system, does notexceed the thickness of that reduced number of layers ofgypsum board.6.4 Floor/Ceiling Assembly with Concrete Floor:NOTE 5This section does not apply to floor/ceiling assemblies pro-tected with direct applied fireproofing.6.4.1 The following changes, individually or i
49、n combina-tion, would not reduce the F-rating, provided that: (1) thefirestop is in the same position relative to the heat source, and(2) the firestop is at least in contact with the same material astested;6.4.1.1 Increase in the depth of joists or trusses,6.4.1.2 Increase in thickness or number of layers of gypsumboard,6.4.1.3 Increase in the overall assembly thickness due toadditional floor coverings or ceiling finishes.Exception: In assemblies where there are firestop materialsnot part of the exposed side that is part of the tested or listedfirestop configuration.Exception
