Designation:D6898−03(Reapproved2016)StandardTestMethodforEvaluatingDieselFuelLubricitybyanInjectionPumpRig1ThisstandardisissuedunderthefixeddesignationD6898;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONAlldieselfuelinjectionequipmentrelies,tosomeextent,ondieselfuelasalubricant.Shortenedlifeofdieselfuelinjectionpumpsandinjectorsfromwearcausedbyexcessivefrictionhassometimesbeenascribedtolackoflubricityinthefuel.Thistestassessesthelubricityofafuelbyoperationofthefuelinatypicalfuelinjectionsystemcomprisedofinjectionpump,highpressurepipes,andinjectorsonapumptestrigbench.Thetestmodelsanactualcommercialapplicationofsuchequipment.ThepumpperformanceisevaluatedonatestbenchmeetingSAEJ1668requirements.1.Scope1.1ThistestmethodcoversevaluatingthelubricityofdieselfuelsusingapumprigtestandStanadyneModelDB4427-4782pumps.NOTE1—Otherpumpsmaybeusedifacorrelationbetweenpumpperformancefactorsandfuellubricityhasbeendeveloped.1.2Thistestmethodisapplicabletoanyfuelusedindieselengines,includingthosewhichmaycontainalubricityenhanc-ingadditive.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.SpecificwarningstatementsaregiveninSection7.2.ReferencedDocuments2.1ASTMStandards:2D329SpecificationforAcetoneD362SpecificationforIndustrialGradeToluene(Withdrawn1989)3D4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProductsD4306PracticeforAviationFuelSampleContainersforTestsAffectedbyTraceContaminationD6078TestMethodforEv...
