Designation:D173/D173M−03(Reapproved2018)StandardSpecificationforBitumen-SaturatedCottonFabricsUsedinRoofingandWaterproofing1ThisstandardisissuedunderthefixeddesignationD173/D173M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.ThisstandardreplacesFederalSpecificationSS-C-450.1.Scope1.1Thisspecificationcoverswovencottonfabricssaturatedwitheitherasphaltorcoal-tarpitchintendedtobeusedwithasphaltsconformingtoSpecificationsD312/D312MorD449/D449M,coal-tarpitchesconformingtoSpecificationD450/D450M,orappropriatesolventbearingbituminousmaterialsintheconstructionofroofingandwaterproofingsystems.1.1.1Asphalt-saturatedcottonfabricshallbeusedwithasphaltbaseplyingcement;typicalonesaremoppingasphaltsconformingtoSpecificationsD312/D312MorD449/D449Morappropriatesolventbearingasphalticcompounds.1.1.2Coal-tar-saturatedcottonfabricshallbeusedwithcoal-tarbasedplyingcements;atypicaloneiscoal-tarpitchconformingtoSpecificationD450/D450Morappropriatesol-ventbearingcoal-tarcompounds.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D146/D146MTestMethodsforSamplingandTestingBitumen-SaturatedFeltsandWovenFabricsforRoofingandWaterproofingD312/D312MSpecificationforAsphaltUsedinRoofing...
