Designation:D7089−06(Reapproved2021)StandardPracticeforDeterminationoftheEffectivenessofAnti-GraffitiCoatingforUseonConcrete,MasonryandNaturalStoneSurfacesbyPressureWashing1ThisstandardisissuedunderthefixeddesignationD7089;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversabasicmethodforevaluatingtheperformanceofanti-graffitiproductsonmineralbuildingsub-stratesbyaseriesofincreasinglyabrasivecleaningmethods.Theanti-graffitimaterialsareappliedtoaseriesofconcrete,masonryandnaturalstonespecimensforevaluation.Graffitiresistanceisbasedonhowadefinedsetofmarkingsareremovedbyadesignatedsetofcleaningtechniques.1.2Thispracticealsodefinesaproceduretoevaluategraffitiremovalafterre-markingwithsubsequentre-cleaning.Itdoesnotaddressthere-treatmentofsubstratesafteramaterialisnolongergraffitiresistant.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D3924SpecificationforStandardEnvironmentforCondi-tioningandTestingPaint,Varnish,Lacquer,andRelatedMaterialsD6578PracticeforDeterminationofGraffitiResistance3.Terminology3.1Definitions:3.1.1graffıtiresistant,n—thepropertyofcoatingstoberesistancetotheapplicationofgraffitiorexhibit...
