Designation:D6741−10(Reapproved2019)StandardTestMethodsforSilanesUsedinRubberFormulations(bis-(triethoxysilylpropyl)sulfanes):SulfurContent1ThisstandardisissuedunderthefixeddesignationD6741;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthedeterminationofthesulfurcontentofsilanes,orofadmixturesofsilaneandcarbonblack,ofthetypebis-(triethoxysilylpropyl)sulfane.Thefollowingtestmethodsareincluded:TestMethodA:CombustioninanOxygenFlaskandSubsequentTitrationofSulfateTestMethodB:High-TemperatureCombustionwithInfraredAbsorptionDetection1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.SignificanceandUse3.1Thesulfurcontentcanbeusedtocharacterizeasilaneoranadmixtureofsilaneandcarbonblack.Itdependsmainlyontheaveragelengthofthesulfurchain.TestMethodA:CombustioninanOxygenFlaskandSubsequentTitrationofSulfate4.SummaryofTestMethod4.1Theweighedsampleisburnedinanoxygenatmo-sphere.Theresultingsulfurdioxideandtrioxideisabsorbedinhydrogenperoxidesol...
