Designation:B666/B666M−15StandardPracticeforIdentificationMarkingofAluminumandMagnesiumProducts1ThisstandardisissuedunderthefixeddesignationB666/B666M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thispracticeestablishesthephysicalitemmarkingrequirementsforidentificationpurposesforaluminumandmagnesiumproducts.Packagemarkingforshipmentandinspectionacceptanceisnotwithinthescopeofthisstandard.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffectonthedateofmaterialpurchaseformapartofthisspecificationtotheextentreferencedherein:2.2ASTMStandards:2B361SpecificationforFactory-MadeWroughtAluminumandAluminum-AlloyWeldingFittingsB404/B404MSpecificationforAluminumandAluminum-AlloySeamlessCondenserandHeat-ExchangerTubeswithIntegralFins(Withdrawn2006)3B547/B547MSpecificationforAluminumandAluminum-AlloyFormedandArc-WeldedRoundTubeB881TerminologyRelatingtoAluminum-andMagnesium-AlloyProducts2.3ANSIStandards:H35.1/H35.1(M)AlloyandTemperDesignationSystemsforAluminum42.4MilitaryStandards:MIL-STD-409AlloyNomenclatureandTemperDesigna-tionSystemforMagnesiumBaseAlloys53.Terminology3.1Definitions—RefertoTerminologyB881fordefinitionsofproducttermsusedinthisspecification.3.2DefinitionsofTer...
