Designation:D2001−07(Reapproved2017)StandardTestMethodforDepentanizationofGasolineandNaphthas1ThisstandardisissuedunderthefixeddesignationD2001;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheremovalofpentanesandlighterhydrocarbonsfromgasolines,naphthas,andsimilarpetroleumdistillatestopreparesamplessuitableforthedeter-minationofhydrocarbontypesinaccordancewithTestMethodD2789.Inaddition,thistestmethoddeterminesthevolumepercentofbottomsremainingafterdepentanization.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1250GuideforUseofthePetroleumMeasurementTablesD2789TestMethodforHydrocarbonTypesinLowOlefinicGasolinebyMassSpectrometry3.SummaryofTestMethod3.1A50mLsampleisdistilledintoanoverhead(C5andlighter)fractionandabottoms(C6andheavier)fraction.Thevolumeofbottomsismeasuredandthevolumepercent,basedonthecharge,iscalculated.4.SignificanceandUse4.1Thepresenceofpentaneandlighterhydrocarbonsingasolines,naphthas,andsimilarpetroleumdistillatesinterferesinTestMethodD2789.Pentaneandlighterhydrocarbonsareseparatedbythistestmethodsothatthedepentanizedresiduecanbeanalyzedandsothepentaneandlighterhydrocarbonscanbeanaly...
