Designation:D3712−18Designation:369/(95)StandardTestMethodofAnalysisofOil-SolubleSulfonatesbyLiquidChromatography1ThisstandardisissuedunderthefixeddesignationD3712;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoverstheanalysisofrefinedandcrudenaturalandsyntheticoil-solublesulfonateproducts.Resins,ifpresent,arerecoveredwiththeoilphaseandcarboxylatesarerecoveredassulfonates.1.2Thistestmethodcoversthedeterminationofmineraloil,sodiumsulfonate,inorganicsalts,water,basicityoracidity,averagemolecularweight,andrelativedensityofsodiumsulfonateproducts.1.3Thistestmethodcoversthedeterminationofmineraloil,sulfonate,water,basenumber,averagemolecularweight,andrelativedensityofcalcium,barium,magnesium,andammoniumsulfonateproducts.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D95TestMethodforWaterinPetroleumProductsandBituminousMaterialsbyDistillationD2896TestMethodforBaseNumberofPetroleumProductsbyPotentiometricPerchloricAcidTitration3.Terminology3.1Symbols:3.1.1FollowingaredefinitionsofthesymbolsusedinSection17,andasnotedinthesectionsinparentheses.A=gramsofsampleofcalcium,...
