Designation:D4637/D4637M−15StandardSpecificationforEPDMSheetUsedInSingle-PlyRoofMembrane1ThisstandardisissuedunderthefixeddesignationD4637/D4637M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversflexiblesheetmadefromethylene-propylene-dieneterpolymer(EPDM)intendedforuseinsingle-plyroofingmembranesexposedtotheweather.Thetestsandpropertylimitsusedtocharacterizethesheetarevaluestoensureminimumqualityfortheintendeduse.Thesheetmaybenon-reinforced,fabric-orscrim-reinforced,orfabric-backedvulcanizedrubbersheet.1.2In-placeroofsystemdesigncriteria,suchasfireresistance,fieldseamingstrength,materialcompatibility,andupliftresistance,amongothers,arefactorsthatmustbeconsideredbutarebeyondthescopeofthisspecification.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D412TestMethodsforVulcanizedRubberandThermoplas-ticElastomers—TensionD413TestMethodsforRubberProperty—AdhesiontoFlex-ibleSubstrateD471TestMethodforRubberProperty—EffectofLiquidsD518TestMethodforRubberDeterioration—SurfaceCracking(Withdrawn2007)3D573TestMethodforRubber—DeteriorationinanAirOvenD624TestMethodforTearStrengthofConventionalVul-canizedRubberan...
