Designation:D7421−11StandardTestMethodforDeterminingExtremePressurePropertiesofLubricatingOilsUsingHigh-Frequency,Linear-Oscillation(SRV)TestMachine1ThisstandardisissuedunderthefixeddesignationD7421;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversaprocedurefordeterminingextremepressurepropertiesoflubricatingoilsforhydraulics,gearsandenginesunderhigh-frequencylinear-oscillationmo-tionusingtheSRVtestmachine.NOTE1—ThistestmethodwasdevelopedandtheinternationalroundrobintestswerejointlyperformedwiththeDIN51834workinggroup.Thisprocedureisbasedonthe2005revisionofTestMethodD5706forgreasesanddiffersregardingthestrokelengthandthecleaningsolvent.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A295/A295MSpecificationforHigh-CarbonAnti-FrictionBearingSteelD235SpecificationforMineralSpirits(PetroleumSpirits)(HydrocarbonDryCleaningSolvent)D4175TerminologyRelatingtoPetroleum,PetroleumProducts,andLubricantsD5706TestMethodforDeterminingExtremePressurePropertiesofLubricatingGreasesUsingaHigh-Frequency,Linear-Oscillation(SRV)TestMachineD6425TestMethodforMeasuringFrictionandWearProp-ertiesofExtremePressure(EP)LubricatingOilsUsingSRVTestMachineE45TestMethodsforDeterminingtheInclusionContentofSteelG40TerminologyRelatingtoWearandErosion2.2DINStandards:3DIN51631:1999Mineralspirits;specialboilingpointspir-its;requirementsDINENISO683-17Heat-treatedSteels,alloysteelsandfree-cuttingsteels–Part17:Ballandrollerbearingsteels(...
