Designation:D5983−21StandardSpecificationforMethylTertiary-ButylEther(MTBE)forBlendingWithGasolinesforUseasAutomotiveSpark-IgnitionEngineFuel1ThisstandardisissuedunderthefixeddesignationD5983;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversrequirementsforfuelgrademethyltertiary-butyletherutilizedinblendingwithgasolinesat1%to15%byvolume(equivalentto2.7%byweightoxygen)foruseasautomotivespark-ignitionenginefuelcoveredbySpecificationD4814aswellasotherautomotivefuelapplicationsinvolvingMTBE.OtherMTBEgradesmaybeavailableforblendingthatarenotcoveredbythisspecifi-cation.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D156TestMethodforSayboltColorofPetroleumProducts(SayboltChromometerMethod)D381TestMethodforGumContentinFuelsbyJetEvapo-rationD2622TestMethodforSulfurinPetroleumProductsbyWavelengthDispersiveX-rayFluorescenceSpectrometryD4045TestMethodforSulfurinPetroleumProductsbyHydrogenolysisandRateometricColorimetryD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4175TerminologyRelatingtoPetroleumProducts,LiquidFuels,andLubricantsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProductsD4306PracticeforAviationFuelSampleContainersforTestsAffectedbyTraceContaminationD4814SpecificationforAutomotiveSpark-IgnitionEngineFuelD5441TestMethodforAnalysisofMethylTert-ButylEther(MTBE)byGasChromatographyD5854PracticeforMixingandHandlingofLiquidSamplesof...
