Designation:D7423−17StandardTestMethodforDeterminationofOxygenatesinC2,C3,C4,andC5HydrocarbonMatricesbyGasChromatographyandFlameIonizationDetection1ThisstandardisissuedunderthefixeddesignationD7423;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthegaschromatographicpro-cedureforthequantitativedeterminationoforganicoxygenatesinC2,C3,C4,andC5matricesbymultidimensionalgaschromatographyandflameionizationdetection.Thistestmethodisapplicablewhenthehydrocarbonmatriceshaveafinalboilingpointnotgreaterthan200°C.Oxygenatecom-poundsinclude,butarenotlimitedto,thoselistedinTable1.Thelinearworkingrangeforoxygenatesis0.50mg⁄kgto100mg⁄kg.1.2Thistestmethodisintendedtodeterminethemassconcentrationofeachoxygenateinthehydrocarbonmatrix.Oxygenatecompoundidentificationisdeterminedbyreferencestandardsandcolumnelutionretentionorder.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1265PracticeforSamplingLiquefiedPetroleum(LP)Gases,ManualMethodD1835SpecificationforLiquefiedPetroleum(LP)GasesD4175TerminologyRelatingtoPetroleumProducts,LiquidFuels,andLubricantsD6299PracticeforApplyingStatisticalQualityAssuranceandControlChartingTechniquestoE...
