Designation:D297−15StandardTestMethodsforRubberProducts—ChemicalAnalysis1ThisstandardisissuedunderthefixeddesignationD297;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodscoverthequalitativeandquantita-tiveanalysisofthecompositionofrubberproductsofthe“R”family(see3.1).Manyofthesetestmethodsmaybeappliedtotheanalysisofnaturalandsyntheticcruderubbers.1.1.1PartAconsistsofgeneraltestmethodsforuseinthedeterminationofsomeorallofthemajorconstituentsofarubberproduct.1.1.2PartBcoversthedeterminationofspecificpolymerspresentinarubberproduct.1.1.3Thetestmethodsappearinthefollowingorder:PartA.GeneralTestMethods:SectionsRubberPolymerContentbytheIndirectMethod11–13DeterminationsandReportfortheGeneralMethod14and15Density16ExtractAnalysis17–26SulfurAnalysis27–33FillersAnalysis34–40AshAnalysis41–51PartB.DeterminationofRubberPolymers52–581.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionaryorwarningstatementsaregivenin31.4.5,31.6,37.4.2,38.4.2,45.1.3,53.2.3.5,54.4.2,54.6,56.5.3,and57.7.3;andX1.3.3andX2.4.1.6.2.ReferencedDocuments2.1ASTMStandards:2D982TestMethodforOrganicNitrogeninPaperandPaperboardD1416TestMethodsforRubberfromSyntheticSources—ChemicalAnalysis(Withdrawn1996)3D1418PracticeforRubberandRubberLatices—NomenclatureD1646TestMethodsforRubber—Viscosity,StressRelaxation,andPre-VulcanizationCharacteristics(MooneyViscometer)D3040PracticeforPreparingPrecision...
