Designation:D4280−15StandardSpecificationforExtendedLifeType,Nonplowable,RaisedRetroreflectivePavementMarkers1ThisstandardisissuedunderthefixeddesignationD4280;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversnonplowable,retroreflectiveraisedpavementmarkersfornighttimelanemarkinganddelineation.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandardexceptwherenotedinthedocument.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section9,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimita-tionspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D5TestMethodforPenetrationofBituminousMaterialsD36TestMethodforSofteningPointofBitumen(Ring-and-BallApparatus)D71TestMethodforRelativeDensityofSolidPitchandAsphalt(DisplacementMethod)D92TestMethodforFlashandFirePointsbyClevelandOpenCupTesterD113TestMethodforDuctilityofBituminousMaterialsD1785SpecificationforPoly(VinylChloride)(PVC)PlasticPipe,Schedules40,80,and120D3111TestMethodforFlexibilityDeterminationofHot-MeltAdhesivesbyMandrelBendTestMethodD4402TestMethodforViscosityDeterminationofAsphaltatElevatedTemperaturesUsingaRotationalViscometerD5329TestMethodsforSealantsandFillers,Hot-Applied,forJointsandCracksinAsphalticandPortlandCementConcretePavementsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE284TerminologyofAppearanceE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodE808PracticeforDescribingRetroreflect...
