Designation:C507M−18StandardSpecificationforReinforcedConcreteEllipticalCulvert,StormDrain,andSewerPipe(Metric)1ThisstandardisissuedunderthefixeddesignationC507M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationcoversreinforcedellipticallyshapedconcretepipetobeusedfortheconveyanceofsewage,industrialwastes,stormwater,andfortheconstructionofculverts.1.2Pipedesignedforplacementwiththemajoraxishori-zontalshallbedesignatedas“HorizontalEllipticalPipe.”Pipedesignedforplacementwiththemajoraxisverticalshallbedesignatedas“VerticalEllipticalPipe.”1.3ThisspecificationistheSIcompaniontoSpecificationC507;therefore,noinch-poundequivalentsarepresentedinthisspecification.ReinforcedconcretepipethatconformstotherequirementsofC507areacceptableunderthisSpecifica-tionC507Munlessprohibitedbytheowner.NOTE1—Thisspecificationisamanufacturingandpurchasespecifica-tiononly,anddoesnotincluderequirementsforbedding,backfill,ortherelationshipbetweenfieldloadconditionandthestrengthclassificationofpipe.However,experiencehasshownthatthesuccessfulperformanceofthisproductdependsupontheproperselectionoftheclassofpipe,typeofbeddingandbackfill,andcarethattheinstallationconformstoconstructionspecifications.Theownerofthereinforcedconcretepipespecifiedhereiniscautionedthathemustcorrelatethefieldrequirementswiththeclassofpipespecifiedandprovideinspectionattheconstructionsite.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2A36/A3...
