Designation:D3142/D3142M−11StandardTestMethodforSpecificGravity,APIGravity,orDensityofCutbackAsphaltsbyHydrometerMethod1ThisstandardisissuedunderthefixeddesignationD3142/D3142M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthelaboratorydetermination,usingaglasshydrometer,ofthedensity,specificgravity,orAPIgravityofcutbackasphaltsasdefinedinSpecificationsD2026,D2027,andD2028(Note1).Valuesaremeasuredonahydrometeratconvenienttemperatures,readingsofdensity,specificgravity,andAPIgravitybeingreducedto15°Cor60°Fbymeansofinternationalstandardtables.Bymeansofthesesametables,valuesdeterminedinoneofthethreesystemsofmeasurementareconvertibletoequivalentvaluesineithersystemsothatmeasurementsmaybemadeintheunitsoflocalconvenience.NOTE1—Thistestmethodisapplicabletocutbackasphaltsandingeneralfollows,butprovidesmoreexplicitroutinesthan,theprocedureoutlinedinTestMethodD1298.1.2Units—ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnoncon-formancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregiveninSection7.2.ReferencedDocuments2.1ASTMStandards:2C670PracticeforPreparingPrecisionandBiasStatementsforTestMethodsforConstructionMaterialsD140PracticeforSamplingBituminousMaterialsD1250GuideforUseofthePetroleumMeasurementTablesD1298TestMethodforDensity,RelativeDensity(SpecificGravity),orAPIGravityofCrudePetroleumandLiquidPetrol...
