Designation:D6227−14AnAmericanNationalStandardStandardSpecificationforUnleadedAviationGasolineContainingaNon-hydrocarbonComponent1ThisstandardisissuedunderthefixeddesignationD6227;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1ThisspecificationcoversGradesUL82andUL87un-leadedaviationgasolines,whicharedefinedbythisspecifica-tionandareonlyforuseinenginesandassociatedaircraftthatarespecificallyapprovedbytheengineandaircraftmanufacturers,andcertifiedbytheNationalCertifyingAgen-ciestousethesefuels.Componentscontaininghetro-atoms(oxygenates)maybepresentwithinthelimitsspecified.1.2AfuelmaybecertifiedtomeetthisspecificationbyaproducerasGradeUL82orUL87aviationgasolineonlyifblendedfromcomponent(s)approvedforuseinthesegradesofaviationgasolinebytherefiner(s)ofsuchcomponents,becauseonlytherefiner(s)canattesttothecomponentsourceandprocessing,absenceofcontamination,andtheadditivesusedandtheirconcentrations.Consequently,reclassifyingofanyotherproducttoGradeUL82orGradeUL87aviationgasolinedoesnotmeetthisspecification.1.3AppendixX1containsanexplanationfortherationaleofthespecification.AppendixX2detailsthereasonsfortheindividualspecificationrequirements.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.2.ReferencedDocuments2.1ASTMStandards:2D86TestMethodforDistillationofPetroleumProductsatAtmosphericPressureD130TestMethodforCorrosivenesstoCopperfromPetro-leumProductsbyCopperStripTestD357MethodofTestforKnockCharacteristicsofMotorFuelsBelow100OctaneNumberbytheMotorMethod;ReplacedbyD2700(Withdrawn1969)3D381TestMethodforGumContentinFuelsbyJetEvapo-rationD873TestMethodforOxidationStabilityofAviationFuels(PotentialResidueMethod)D909TestMethodforSuperchargeRatingofSpark-IgnitionAviationGasolineD910Specificatio...
