Designation:B370−12StandardSpecificationforCopperSheetandStripforBuildingConstruction1ThisstandardisissuedunderthefixeddesignationB370;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisspecificationestablishestherequirementsforrolledcoppersheetandstripinflatlengthsorcoilsinounce-weightthicknessesforroofing,flashing,gutters,downspouts,andgeneralsheetmetalworkinbuildingconstruction.1.1.1Productsproducedtothisspecificationarenotin-tendedforelectricalapplications.1.2Units—Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.NOTE1—SpecificationB101isanassociatedspecificationforlead-coatedcoppersheetsandstripforbuildingconstruction.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B101SpecificationforLead-CoatedCopperSheetandStripforBuildingConstructionB248SpecificationforGeneralRequirementsforWroughtCopperandCopper-AlloyPlate,Sheet,Strip,andRolledBarB601ClassificationforTemperDesignationsforCopperandCopperAlloys—WroughtandCastB846TerminologyforCopperandCopperAlloysE3GuideforPreparationofMetallographicSpecimensE8TestMethodsforTensionTestingofMetallicMaterialsE112TestMethodsforDeterminingAverageGrainSizeE255PracticeforSamplingCopperandCopperAlloysfortheDeterminationofChemicalCompositionE478TestMethodsforChemicalAnalysisofCopperAlloys3.GeneralRequirements3.1ThefollowingsectionsofSpecificationB248constituteapartofthisspecification:...
