Designation:D7319−22StandardTestMethodforDeterminationofExistentandPotentialSulfateandInorganicChlorideinFuelEthanolandButanolbyDirectInjectionSuppressedIonChromatography1ThisstandardisissuedunderthefixeddesignationD7319;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversadirectinjectionionchromato-graphicprocedurefordeterminingexistentandpotentialinor-ganicsulfateandtotalinorganicchloridecontentinhydrousandanhydrousdenaturedethanolandbutanoltobeusedinmotorfuelapplications.Itisintendedfortheanalysisofethanolandbutanolsamplescontainingbetween1.0mg⁄kgto20mg/kgofexistentorpotentialinorganicsulfateand1.0mg⁄kgto50mg/kgofinorganicchloride.NOTE1—Tertiarybutanolisnotincludedinthistestmethod.1-butanol,2-butanol,andisobutanolareincludedinthetestingandresearchreportforthistestmethod.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.MaterialSafetyDataSheetsareavailableforreagentsandmaterials.Reviewthemforhazardspriortousage.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD4052TestMethodforDensity,RelativeDensity,andAPIGravityofLiquidsbyDigitalDensityMeterD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4175Terminology...
