Designation:D96–88(Reapproved1998)Designation:MPMSChapter10.4AnAmericanNationalStandardBritishStandard4385AmericanAssociationStateHighwayTransportationStandardAASHTONo.T55StandardTestMethodforWaterandSedimentinCrudeOilbyCentrifugeMethod(FieldProcedure)1ThisstandardisissuedunderthefixeddesignationD96;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThismethodhasbeenapprovedbythesponsoringcommitteesandacceptedbytheCooperatingSocietiesinaccordancewithestablishedprocedures.ThistestmethodhasbeenadoptedforusebygovernmentagenciestoreplaceMethod3003ofFederalTestMethodStandardNo.791b.AnnexA1isunderrevisionandwillbeincludedinsubsequentrevisionstothisstandard.1.Scope1.1Thistestmethodcoversthecentrifugemethodfordeterminingsedimentandwaterincrudeoilduringfieldcustodytransfers.Thistestmethodmaynotalwaysprovidethemostaccurateresults,butitisconsideredthemostpracticalmethodforfielddeterminationofsedimentandwater.Whenahigherdegreeofaccuracyisrequired,thelaboratoryproceduredescribedinTestMethodsD4006,D4377orD473shouldbeused.NOTE1—Waterbydistillationandsedimentbyextractionareconsid-eredthemostaccuratemethodsofdeterminingsedimentandwaterincrudeoils.Assuch,thesemethodsshouldbeemployedtoresolvedifferencesinresultsfromvariationsofthisprocedureorbetweenthisprocedureandothermethods,orinthecaseofadisputebetweenparties.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D235SpecificationforMineralSpirits(PetroleumSpirits)(HydrocarbonDrycleaningSpirits)2D362SpecificationforIndustrialGradeToluene2D473TestMethodforSedimentinCrudeOilsandFuelOilsbytheExtractionMethod...
