Designation:D2711−22StandardTestMethodforDemulsibilityCharacteristicsofLubricatingOils1ThisstandardisissuedunderthefixeddesignationD2711;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthemeasurementoftheabilityofoilandwatertoseparatefromeachother.Itisintendedforuseintestingmediumandhigh-viscositylubricatingoils.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD1796TestMethodforWaterandSedimentinFuelOilsbytheCentrifugeMethod(LaboratoryProcedure)D4175TerminologyRelatingtoPetroleumProducts,LiquidFuels,andLubricants3.Terminology3.1Definitions:3.1.1Fordefinitionsoftermsusedinthistestmethod,refertoTerminologyD4175.3.1.2demulsibility,n—inpetroleumproducts,theabilityofamixtureofliquids(usuallyhydrocarbonsandwater)toseparateintoitscomponentsafterthemixturehasbeenvigorouslyagitated.D41754.SummaryofTestMethod4.1ForOilsThatDoNotContainExtremePressure(EP)Additives—A405mLsampleoftheoiland45mLofdistilledwaterarestirredtogetherfor5minat82°Cinaspecialgraduatedseparatoryfunnel.Aftera5hsettlingperiodfollow-ingthestirring,apercentageofthewaterintheoilandthevolumesofwaterandemulsionsepar...
