Designation:D7875−20StandardTestMethodforDeterminationofButanolandAcetoneContentofButanolforBlendingwithGasolinebyGasChromatography1ThisstandardisissuedunderthefixeddesignationD7875;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthebutanolcontentofbutanolforblendingwithgasolinebygaschroma-tography.1.2Butanolisdeterminedfrom95%to99.9%bymass,acetoneisdeterminedfrom0.02%to1.5%bymass,ethanolisdeterminedfrom0.02%to1.5%bymass,andmethanolisdeterminedfrom0.02%to1.5%bymass.Equationsusedtoconverttheseindividualcomponentsfrommasspercenttovolumepercentareprovided.Thistestmethodhasnotbeenevaluatedforusewiththebutanolisomer2-methyl-2-propanol.1.3Thistestmethodidentifiesandquantifiesacetone,ethanol,andmethanol,butdoesnotpurporttoidentifyallindividualcomponentsthatmaybepresentinbutanolforgasolineblending.1.4WatercannotbedeterminedbythistestmethodandshallbemeasuredbyaproceduresuchasTestMethodD1364andtheresultusedtocorrectthechromatographicvalues.1.5Thistestmethodisinappropriateforimpuritiesthatboilattemperatureshigherthan225°Corforimpuritiesthatcausepoorornoresponseinaflameionizationdetector,suchaswater.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.8Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(...
