Designation:D7524−10(Reapproved2015)IP568/08StandardTestMethodforDeterminationofStaticDissipaterAdditives(SDA)inAviationTurbineFuelandMiddleDistillateFuels—HighPerformanceLiquidChromatograph(HPLC)Method1ThisstandardisissuedunderthefixeddesignationD7524;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofstaticdissipateradditive(SDA)contentofaviationturbinefuelandmiddledistillatefuels.1.2Theprecisionofthistestmethodhasbeenestablishedforaviationturbinefuelovertheconcentrationrangeof1mg⁄Lto12mg⁄L.Higherconcentrationscanbedeterminedbydilution,buttheprecisionofthetestmethodwillnotapply.NOTE1—TheSDAusedtodevelopthistestmethodwasSTADIS4502foraviationfuelsandSTADIS450and4252formiddledistillates.1.3ThetestmethodincludesaproceduretoconcentratethesulfonicacidcomponentintheSDApriortoanalysis.1.4ThetestmethodonlyappliestoSDAsthatcontainalkylsubstitutedsulfonicacid.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3D4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProducts2.2ISOStandards:4ENISO3696WaterforAnalyticalLaboratoryUse—SpecificationsandTestMethods2.3EnergyInstituteStandards:5IP568/08DeterminationoftheStaticDissipaterAdditives(SDA)inAviationTurbineFuelandMiddleDistillateFuels—HPLCMethod3.Terminology3.1Definitions:3.1.1middledistillatefuels,n—genericrefinery/suppliertermthatusuallydenotesafuelprimarilyintendedforuseinco...
