Designation:D972−16StandardTestMethodforEvaporationLossofLubricatingGreasesandOils1ThisstandardisissuedunderthefixeddesignationD972;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodcoversthedeterminationofthelossinmassbyevaporationoflubricatinggreasesandoilsforapplicationswhereevaporationlossisafactor.Evaporationlossdatacanbeobtainedatanytemperatureintherangefrom100°Cto150°C(210°Fto300°F).1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.1.2.1Exception—Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A240/A240MSpecificationforChromiumandChromium-NickelStainlessSteelPlate,Sheet,andStripforPressureVesselsandforGeneralApplicationsD217TestMethodsforConePenetrationofLubricatingGreaseD2595TestMethodforEvaporationLossofLubricatingGreasesOverWide-TemperatureRangeE2251SpecificationforLiquid-in-GlassASTMThermom-eterswithLow-HazardPrecisionLiquids3.Terminology3.1Definitions:3.1.1lubricatinggrease,n—asemi-fluidtosolidproductofathickenerinaliquidlubricant.3.1.1.1Discussion—Thedispersionofthethickenerformsatwo-phasesystemandimmobilizestheliquidlubricantbysurfacetensionandotherphysicalforces.OtheringredientsarecommonlyD217includedtoimpartspecialproperties.3.1.2thickener,n—inlubricatinggrease,asubstancecom-posedoffinelydividedparticlesdispersedinaliquidtoformtheproduct’sstructure.3.1.2.1Discussion—Thickenerscanbefibers(suchasvari-ousmetallicsoaps)orplatesorspheres(suchascertainnon-soapthick...
