Designation:D473−22ManualofPetroleumMeasurementStandards(MPMS),Chapter10.1StandardTestMethodforSedimentinCrudeOilsandFuelOilsbytheExtractionMethod1ThisstandardisissuedunderthefixeddesignationD473;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodcoversthedeterminationofsedimentincrudeoilsandfueloilsbyextractionwithtoluene.Theprecisionappliestoarangeofsedimentlevelsfrom0.01%to0.40%mass,althoughhigherlevelsmaybedetermined.NOTE1—Precisiononrecycledoilsandcrankcaseoilsisunknownandadditionaltestingisrequiredtodeterminethatprecision.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningstatements,see6.1.1.6and7.1.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D4057PracticeforManualSamplingofPetroleumandPetroleumProducts(APIMPMSChapter8.1)D4175TerminologyRelatingtoPetroleumProducts,LiquidFuels,andLubricantsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProducts(APIMPMSChapter8.2)D5854PracticeforMixingandHandlingofLiquidSamplesofPetroleumandPetroleumProducts(APIMPMSChap-ter8.3)E29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecifications2.2APIStan...
