Designation:D6217−11Designation:415/98StandardTestMethodforParticulateContaminationinMiddleDistillateFuelsbyLaboratoryFiltration1ThisstandardisissuedunderthefixeddesignationD6217;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthemassofparticulatecontaminationinamiddledistillatefuelbyfiltra-tion.ThistestmethodissuitableforallNo.1andNo.2gradesinSpecificationsD396,D975,D2880andD3699andforgradesDMAandDMBinSpecificationD2069.1.2ThistestmethodisnotsuitableforfuelswhoseflashpointasdeterminedbyTestMethodsD56,D93orD3828islessthan38°C.NOTE1—Middledistillatefuelswithflashpointslessthan38°Chavebeenignitedbydischargesofstaticelectricitywhenthefuelshavebeenfilteredthroughinadequatelybondedorgroundedmembranefiltersys-tems.SeeTestMethodsD2276andD5452formeansofdeterminingparticulatecontaminationinSpecificationD1655aviationturbinefuelsandothersimilaraviationfuels.SeeGuideD4865foramoredetaileddiscussionofstaticelectricityformationanddischarge.1.3Thistestmethodhasnotbeenvalidatedfortestingbiodiesel,suchasmeetingSpecificationD6751orblendsofmiddledistillatesandbiodiesel,suchasmeetingSpecificationD7467,orboth.TestMethodD7321hasbeendeterminedtobesuitablefortestingB100andallblendsofmiddledistillatesandbiodiesel.NOTE2—No.1andNo.2gradesinSpecificationsD396orD975currentlyallowupto5%biodieselmeetingSpecificationD6751.Samplescontainingbiodieselcanresultinpartialdissolutionorcompromiseofthemembranefiltersandgiveerroneousresults.1.4Theprecisionofthistestmethodisapplicabletoparticulatecontaminantlevelsbetween0to25g/m3providedthat1Lsamplesareusedandthe1Lisfilteredcompletely.Higherlevelsofparticulatecontaminantcanbemeasured,butaresubjecttouncertainprecision.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementarei...
