ASTM_D_4637_-_D_4637M_-_15_2021.pdf

Designation:D4637/D4637M15(Reapproved 2021)Standard Specification forEPDM Sheet Used in Single-Ply Roof Membrane1This standard is issued under the fixed designation D4637/D4637M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers flexible sheet made fromethylene-propylene-diene terpolymer(EPDM)intended for usein single-ply roofing membranes exposed to the weather.Thetests and property limits used to characterize the sheet arevalues to ensure minimum quality for the intended use.Thesheet may be non-reinforced,fabric-or scrim-reinforced,orfabric-backed vulcanized rubber sheet.1.2 In-place roof system design criteria,such as fireresistance,field seaming strength,material compatibility,anduplift resistance,among others,are factors that must beconsidered but are beyond the scope of this specification.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 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 TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD413 Test Methods for Rubber PropertyAdhesion to Flex-ible SubstrateD471 Test Method for Rubber PropertyEffect of LiquidsD518 Test Method for Rubber DeteriorationSurfaceCracking(Withdrawn 2007)3D573 Test Method for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD751 Test Methods for Coated FabricsD816 Test Methods for Rubber CementsD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1204 Test Method for Linear Dimensional Changes ofNonrigid Thermoplastic Sheeting or Film at ElevatedTemperatureD2137 Test Methods for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD5602/D5602M Test Method for Static Puncture Resistanceof Roofing Membrane SpecimensD5635/D5635M Test Method for Dynamic Puncture Resis-tance of Roofing Membrane SpecimensD6382/D6382M Practice for Dynamic Mechanical Analysisand Thermogravimetry of Roofing and WaterproofingMembrane MaterialD7635/D7635M Test Method for Measurement of Thicknessof Coatings Over Fabric ReinforcementG151 Practice for Exposing Nonmetallic Materials inAccel-erated Test Devices that Use Laboratory Light SourcesG155 Practice for Operating XenonArc LampApparatus forExposure of Materials3.Classification3.1 Types describe the sheet construction:3.1.1 Type INon-reinforced.3.1.2 Type IIScrim(or fabric)internally reinforced.3.1.3 Type IIIFabric backed.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.18on Nonbituminous Organic Roof Coverings.Current edition approved Dec.1,2021.Published December 2021.Originallyapproved in 1987.Last previous edition approved in 2015 as D4637/D4637M 15.DOI:10.1520/D4637_D4637M-15R21.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.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 International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1?4.Materials and Manufacture4.1 The sheet shall be formulated from EPDM polymers andother compounding ingredients.EPDM shall be the principalpolymer used in the sheet and shall be greater than 95%of thetotal polymer content.4.2 To make seams