Designation:D8161−17StandardTestMethodforImpactResistanceofThermoplasticPavementMarkingMaterialsoveraHighwaySubstratebyMeansofaStrikerImpactedbyaFallingWeight1ThisstandardisissuedunderthefixeddesignationD8161;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthesamplepreparationoveraroad-typesubstrateandtestmethodologyofthermoplasticpavementmarkingmaterialssimilartothe“GardnerImpact”methodaslistedinTestMethodD5420.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D883TerminologyRelatingtoPlasticsD2794TestMethodforResistanceofOrganicCoatingstotheEffectsofRapidDeformation(Impact)D4796TestMethodforBondStrengthofThermoplasticPavementMarkingMaterialsD5420TestMethodforImpactResistanceofFlat,RigidPlasticSpecimenbyMeansofaStrikerImpactedbyaFallingWeight(GardnerImpact)D5628TestMethodforImpactResistanceofFlat,RigidPlasticSpecimensbyMeansofaFallingDart(TuporFallingMass)D7307PracticeforSamplingofThermoplasticTrafficMark-ingMaterialsD7308PracticeforSamplePreparationofThermoplasticPavementMarkingMaterialsE177PracticeforUseoftheTermsPrecisio...
