Designation:D7403−19StandardTestMethodforDeterminationofResidueofEmulsifiedAsphaltbyLowTemperatureVacuumDistillation1ThisstandardisissuedunderthefixeddesignationD7403;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thismethodcoversthequantitativedeterminationofresidueinemulsifiedasphaltscomposedprincipallyofasemisolidorliquidasphalticbase,water,andanemulsifyingagent.Theemulsifiedasphaltswillgenerallycontainpolymericmaterials.Itisespeciallysuitableforemulsifiedasphaltresiduepropertiesthatmaybealteredatthehigh-temperature260°C(500°F)distillation.Sincethereiscurrentlynotaprecisionstatementforthisprocedure,itisrecommendedtotheuserthatthisprocedurenotbeusedforbuy/sellpurposesatthepresenttime.1.2Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.3Thetextofthisstandardreferencenotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D3666SpecificationforMinimumRequirementsforAgen-ciesTestingandInspectingRoadandPavingMaterialsD6997TestMethodforDistillationofEmulsifiedAsphalt3.Significanc...
