Designation:D1996–97(Reapproved2003)StandardTestMethodforDeterminationofPhenolicAntioxidantsandErucamideSlipAdditivesinLowDensityPolyethyleneUsingLiquidChromatography(LC)1ThisstandardisissuedunderthefixeddesignationD1996;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethoddescribesaliquidchromatographprocedurefortheseparationofsomeadditivescurrentlyusedinlowdensitypolyethylene.Theseadditivesareextractedwith2-propanolpriortoliquidchromatographicseparation.Theultravioletabsorbance(200nm)ofthecompound(s)ismea-sured;quantitationisperformedusingtheinternalstandardmethod.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecifichazardsstatement,seeSection9.NOTE1—ThereisnosimilarorequivalentISOstandard.2.ReferencedDocuments2.1ASTMStandards:E131TerminologyRelatingtoMolecularSpectroscopy2E177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethods3E682PracticeforLiquidChromatographyTermsandRe-lationships2E691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3IEEE/ASTMSI10StandardforUseoftheInternationalSystemofUnits(SI)33.Terminology3.1Abbreviations:3.1.1BHEB—2,6-di-t-butyl-4-ethyl-hydroxybenzeneorbu-tylatedhydroxyethylbenzene.3.1.2BHT—2,6-di-t-butyl-4-methylhydroxybenzeneorbu-tylatedhydroxytoluene.3.1.3Irganox1010—tetrakis[methylene(3,5-di-t-butyl-4-hydroxyhydrocinnamate)].3.1.4Irganox1076—octadecyl3-(38,58-t-butyl-4-hydroxyphenyl)propionate.3.1.5Isonox129—2,28-ethylidenebis(4,6-di-t-butylhy-droxybenzene).3.1.6Kemamide-E—cis-13-docosenamide,erucamide.3.1.7LC—liquidchromatography.3.1.8LDPE—lowdensitypolyethylene.3.1...
