Designation:D5774−95(Reapproved2014)StandardTestMethodsforRubber—ChemicalAnalysisofExtractables1ThisstandardisissuedunderthefixeddesignationD5774;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthechemicalanalysisofextractablesfromsyntheticrubbersandareintendedforgeneraluseonsoliduncompoundedstyrene-butadienecopoly-merscommonlyreferredtoasSBR.Analysisofothersyntheticrubbersisalsopossiblewithsomeofthesetestmethods.Thetestmethodsandthesectionsinwhichtheyarecoveredareasfollows:SectionsTotalExtractables4–11OrganicAcid12–19Soap20–26Oil27–42NOTE1—ThenomenclatureusedinthesetestmethodsisinaccordancewithPracticeD1418.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D297TestMethodsforRubberProducts—ChemicalAnaly-sisD1418PracticeforRubberandRubberLatices—NomenclatureD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustries3.Reagents3.1PurityofReagents—Reagentgradechemicalsshallbeusedinalltests.Unlessotherwiseindicated,itisintendedthatallreagentsconformtothespecificationsoftheCommitteeonAnalyticalReagentsoftheAmericanChemicalSociety,wheresuchspecificationsareavailable.3Othergradesmaybeused,provideditisfirstascertainedthatthereagentisofsufficientlyhighpuritytopermititsusewithoutdecreasingtheaccuracyofthedetermination.TESTMETHODA—TOTALEXTRACTABLES4.SummaryofTestMethod4.1Thin,narrowstripsofthedriedrubberareextractedthreetimeswith100cm3ofhotsolventfor10,20,and40-minperiods,respectively.Theextractedrubberisthenextractedfor5minin100cm3ofhotacetonetothoroughlyr...
