Designation:D5148−10StandardTestMethodforCentrifugeKerosineEquivalent1ThisstandardisissuedunderthefixeddesignationD5148;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddeterminesthecentrifugekerosineequivalent(CKE)ofaggregateusedinbituminousmixtures.1.2UnitsofMeasure:1.2.1Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.Anexcep-tionismadeinthevaluesusedformassbecausethisstandardwasoriginallydevelopedusingevenvaluesofgrams,anduseofouncesasastandardwouldmakethosemeasurescumber-some.1.2.2Regardingsieves,perASTMSpecificationE11Sec-tion1.2,“thevaluesstatedinSIunitsshallbeconsideredstandardforthedimensionsofthewireclothopeningsandthediameterofthewiresusedinthewirecloth.Thevaluesstatedininchpoundunitsshallbeconsideredstandardwithregardtothesieveframes.”Whensievemeshsizesarereferenced,thealternateinch-pounddesignationsareprovidedforinformationpurposesandenclosedinparentheses.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see7.1.2.ReferencedDocuments2.1ASTMStandards:2C127TestMethodforRelativeDensity(SpecificGravity)andAbsorptionofCoarseAggregateC128TestMethodforRelativeDensity(SpecificGravity)andAbsorptionofFineAggregateC702PracticeforReducingSamplesofAggregatetoTestingSizeD75PracticeforSamplingAggregatesD3666SpecificationforMinimumRequirementsforAgen-ciesTestingandInspectingRoadandPavingMaterialsD4753GuideforEvaluating,Selecting,andSpecifyingBal-ancesandStandardMassesforUseinSoil,Rock,andCon...
