Designation:B170−99(Reapproved2015)StandardSpecificationforOxygen-FreeElectrolyticCopper—RefineryShapes1ThisstandardisissuedunderthefixeddesignationB170;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationestablishestherequirementsfortwogradesofoxygen-freeelectrolyticcopperwirebars,billets,andcakesproducedwithouttheuseofmetallicormetaloidaldeoxidizers.1.2Oxygen-freecopper,asdescribedherein,isdefinedascoppercontainingoxygennotinexcessof0.0010%(10ppm).1.2.1Grade1copper(UNSC10100)correspondstothedesignationOFEinClassificationB224.1.2.2Grade2copper(UNSC10200)correspondstothedesignationOFinClassificationB224.1.2.3Grade2coppermaybeusedtoproduceOFSdesig-nationcopperscorrespondingtoUNSC10400,C10500,andC10700.1.3AlthoughthisspecificationincludescertainUNSdesig-nationsasdescribedinPracticeE527,thesedesignationsareforcrossreferenceonlyandarenotspecificationrequirements.Incaseofconflict,SpecificationB170shallgovern.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly,exceptforanalyticalmeasurementswhereSIunitsarethenorm.1.5ThefollowinghazardcaveatpertainsonlytoSection13andAnnexA1,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B5SpecificationforHighConductivityTough-PitchCopperRefineryShapesB193TestMethodforResistivityofElectricalConductorMaterialsB224ClassificationofCoppersB577TestMethodsforDetectionofCuprousOxide(Hydro-genEmbrittlementSusceptibility)inCopperB846Terminolo...
