Designation:B476−01(Reapproved2017)StandardSpecificationforGeneralRequirementsforWroughtPreciousMetalElectricalContactMaterials1ThisstandardisissuedunderthefixeddesignationB476;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversgeneralrequirementscommontowroughtpreciousmetalelectricalcontactalloyproductsintheformofsheet,strip,wire,androd.Unlessotherwisespecifiedinthepurchaseorderorinanindividualspecification,thesegeneralrequirementsshallapplytowroughtelectricalcontactmaterialswhereindicatedintheapplicableproductspecificationsissuedbyASTM.1.2Incaseofconflict,therequirementsonthepurchaseorder,theindividualspecification,andthisgeneralspecifica-tionshallprevailinthesequencenamed.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateSafetyDataSheet(SDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimi-tationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffect,onthedateofmaterialpurchase,formapartofthisspecificationtotheextentreferencedherein:2...
