Designation:D6750−19´1StandardTestMethodsforEvaluationofEngineOilsinaHigh-Speed,Single-CylinderDieselEngine—1KProcedure(0.4%FuelSulfur)and1NProcedure(0.04%FuelSulfur)1ThisstandardisissuedunderthefixeddesignationD6750;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—EditoriallyupdatedTMCgovernanceinformationinJune2022.INTRODUCTIONPortionsofthistestmethodarewrittenforusebylaboratoriesthatmakeuseofASTMTestMonitoringCenter(TMC)2services(seeAnnexA1–AnnexA4).TheTMCprovidesreferenceoils,andengineeringandstatisticalservicestolaboratoriesthatdesiretoproducetestresultsthatarestatisticallysimilartothoseproducedbylaboratoriespreviouslycalibratedbytheTMC.Ingeneral,theTestPurchaserdecidesifacalibratedteststandistobeused.OrganizationssuchastheAmericanChemistryCouncilrequirethatalaboratoryutilizetheTMCservicesaspartoftheirtestregistrationprocess.Inaddition,theAmericanPetroleumInstituteandtheGearLubricantReviewCommitteeoftheLubricantReviewInstitute(SAEInternational)requirethatalaboratoryusetheTMCservicesinseekingqualificationofoilsagainsttheirspecifications.TheadvantageofusingtheTMCservicestocalibrateteststandsisthatthetestlaboratory(andhencetheTestPurchaser)hasanassurancethattheteststandwasoperatingattheproperleveloftestseverity.Itshouldalsobeborneinmindthatresultsobtainedinanon-calibratedteststandmaynotbethesameasthoseobtainedinateststandparticipatingintheASTMTMCservicesprocess.LaboratoriesthatchoosenottousetheTMCservicesmaysimplydisregardtheseportions.ASTMInternationalpolicyistoencouragethedevelopmentoftestproceduresbasedongenericequipment.Itisrecognizedthatthereareoccasionswherecritical/sole-sourceequipmenthasbeenapprovedbythetechnicalcommittee(surveillancepanel/taskforce)andisrequiredbythetestprocedure.Thetechnicalcommitteethatoverseesthetestprocedureisencou...
