Designation:D5845−01(Reapproved2011)StandardTestMethodforDeterminationofMTBE,ETBE,TAME,DIPE,Methanol,Ethanolandtert-ButanolinGasolinebyInfraredSpectroscopy1ThisstandardisissuedunderthefixeddesignationD5845;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofmethanol,ethanol,tert-butanol,methyltert-butylether(MTBE),ethyltert-butylether(ETBE),tert-amylmethylether(TAME),anddiisopropylether(DIPE)ingasolinebyinfraredspectroscopy.Thetestmethodissuitablefordeterminingmethanolfrom0.1to6mass%,ethanolfrom0.1to11mass%,tert-butanolfrom0.1to14mass%,andDIPE,MTBE,ETBEandTAMEfrom0.1to20mass%.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1298TestMethodforDensity,RelativeDensity(SpecificGravity),orAPIGravityofCrudePetroleumandLiquidPetroleumProductsbyHydrometerMethodD4052TestMethodforDensity,RelativeDensity,andAPIGravityofLiquidsbyDigitalDensityMeterD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4307PracticeforPreparationofLiquidBlendsforUseasAnalyticalStandardsD4815TestMethodforDeterminationofMTBE,ETBE,TAME,DIPE,tertiary-AmylAlcoholandC1toC4Alco-holsinGasolinebyGasChromatographyD5599TestMethodforDeterminationofOxygenatesinGasolinebyGasChromatographyandOxygenSelectiveFlameIonizationDetectionE1655PracticesforInfraredMultivariateQuantitativeAnalysis2.2OtherStandard:3GC/OFIDEPATestMethod—OxygenandOxygenateCon-tentAnalysis(bywayofgaschromatographywithoxygen-selectiveflameionizationdetec...
