Designation:D5348−95(Reapproved2012)StandardTestMethodforDeterminationoftheMoistureContentofSulfonatedandSulfatedOilsbyDistillationwithXylene1ThisstandardisissuedunderthefixeddesignationD5348;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofwaterexistinginasampleofsulfonatedorsulfatedoil,orboth,bydistillingthesamplewithavolatilesolvent.Thetestmethodisapplicableonlytosulfonatedandsulfatedoilsthatdonotcontainthefollowing:mineralacids,freesulfonicacids,orfreesulfuricacidesters;oralkalihydroxides,carbonatesorac-etates:oralcohol,glycerin,diethyleneglycol,acetone,orotherwater-misciblevolatilecompounds.ThistestmethodwasderivedfromTestMethodsD500,Sections4through9.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D500TestMethodsofChemicalAnalysisofSulfonatedandSulfatedOils3.SignificanceandUse3.1Thistestmethodisintendedtodeterminethemoisturecontentoffats,oils,andfatliquorsusedinthesofteningandstuffingofleather.Themoisturecontentismeasuredforthepurposeofqualityassurance.4.Apparatus4.1Theapparatusrequiredconsistsofaglassflaskheatedbysuitablemeansandprovidedwitharefluxcondenserdischargingintoatrapandconnectedtotheflask.Theconnectionsbetweenthetrapandthecondenserandflaskshallbeinterchangeablegroundjoints.Thetrapservestocollectandmeasurethecondensedwaterandtoreturnthesolventtotheflask.AsuitableassemblyoftheapparatusisillustratedinFig.1.4.1.1Flask,500-mL,ofeithertheshort-neck,round-bottom...
