Designation:D6578/D6578M−13(Reapproved2018)StandardPracticeforDeterminationofGraffitiResistance1ThisstandardisissuedunderthefixeddesignationD6578/D6578M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversabasicmethodforevaluatinggraffitiresistanceofcoatings,anduseofthispracticetoevaluategraffitiresistanceofcoatingsafteroutdoororlabora-toryacceleratedexposure(eitherpriortooraftergraffitiisapplied).Graffitiresistanceisbasedonhowadefinedsetofmarkingsisremovedbyadefinedsetofcleaningagents.1.2Thispracticealsodefinesprocedures(optional)toevaluategraffitiremovalafterre-markingwithsubsequentre-cleaning.Itdoesnotaddressrecoatabilityafteracoatingisnolongergraffitiresistant.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D523TestMethodforSpecularGlossD4587PracticeforFluorescentUV-CondensationExpo-suresofPaintandRelatedCoatingsD6695PracticeforXenon-ArcExposuresofPaintandRelatedCoatingsE1347TestMethodforColorandColor-DifferenceMea-surementbyTristimulusColorimet...
