Designation:D5135−16´1StandardTestMethodforAnalysisofStyrenebyCapillaryGasChromatography1ThisstandardisissuedunderthefixeddesignationD5135;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—Table3waseditoriallycorrectedinNovember2016.1.Scope*1.1Thistestmethodcoversthedeterminationoftheimpu-ritiestypicallyfoundinstyreneandusesthosevaluestodeterminethepurityofstyrenebydifferencebygaschroma-tography.TypicalimpuritiesincommercialstyrenearefoundinTable1.1.2Thistestmethodisapplicabletoimpurityconcentra-tionsintherangeof0.001to1.00%andforstyrenepuritiesof99%orhigherwhenusingtheinternalstandardprocedure.1.3Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,seeSection9.2.ReferencedDocuments2.1ASTMStandards:2D3437PracticeforSamplingandHandlingLiquidCyclicProductsD4307PracticeforPreparationofLiquidBlendsforUseasAnalyticalStandardsD4790TerminologyofAromaticHydrocarbonsandRelatedChemicalsD6809GuideforQualityControlandQualityAssuranceProceduresforAromaticHydrocarbonsandRelatedMa-terialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE355PracticeforGasChromatographyTermsandRelation-shipsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodE1510PracticeforInstallingFusedSilicaOpenTubularCapillaryColumnsinGasChromatographs2.2Other...
