Designation:D4004−06(Reapproved2017)StandardTestMethodsforRubber—DeterminationofMetalContentbyFlameAtomicAbsorption(AAS)Analysis1ThisstandardisissuedunderthefixeddesignationD4004;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodscoverthedeterminationoflead,zinc,copper,andmanganeseinrawrubberandrubbercompounds,vulcanizedorunvulcanized.Thelevelatwhichthemetalsarepresentistakenintoaccountbysuitableadjustmentsofsamplemassanddilution.1.2Certaincompoundingingredients,presentintherubbersamplewilldictatewhichofthemethodsshouldbeused.RefertoSection3.Fivemethodsofdeterminationareasfollows:SectionsMethodA8MethodB9MethodC10MethodD14–22MethodE23–311.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1076SpecificationforRubber—Concentrated,AmmoniaPreserved,Creamed,andCentrifugedNaturalLatexD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustriesE663PracticeforFlameAtomicAbsorptionAnalysis(With-drawn1997)32.2ISOStandards:ISO1396Rubber–CopperContent–PhotometricTechnique-–Determination4ISO1655Rubber–ManganeseContent–...
