Designation:D5017−17StandardTestMethodforDeterminationofLinearLowDensityPolyethylene(LLDPE)CompositionbyCarbon-13NuclearMagneticResonance1ThisstandardisissuedunderthefixeddesignationD5017;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethoddeterminesthemolarcompositionofcopolymerspreparedfromethylene(ethene)andasecondalkene-1monomer.Thissecondmonomercanincludepropene,butene-1,hexene-1,octene-1,and4-methylpentene-1.1.2CalculationsofthistestmethodarevalidforproductscontainingunitsEEXEE,EXEXE,EXXE,EXXXE,andofcourseEEEwhereEequalsetheneandXequalsalkene-1.Copolymerscontainingaconsiderablenumberofalkene-1blocks(suchas,longerblocksthanXXX)areoutsidethescopeofthistestmethod.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.SeeSection8foraspecifichazardstatement.NOTE1—ThereisnoknownISOequivalenttothisstandard.2.ReferencedDocuments2.1ASTMStandards:2D883TerminologyRelatingtoPlasticsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE386PracticeforDataPresentationRelatingtoHigh-ResolutionNuclearMagneticResonance(NMR)Spec-troscopy(Withdrawn2015)3E691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodE2977PracticeforMeasuringandReportingPerformanceofFourier-TransformNuclearMagneticResonance(FT-NMR)SpectrometersforLiquidSamplesIEEE/ASTMSI-10StandardforUseoftheInternationalSystemofUnits(SI):TheModernSystem43.Terminology3.1Someunits,symbols,andabbreviationsusedinthistestmethodaresummarizedinIEEE/ASTMSI-10andPracticeE386.Otherabbreviationsarelistedasfollows:3.2Abbreviations:3.2.113C—carbon13,3.2.2LLDPE—linearlow-densitypolyet...