Designation:D8380−21StandardTestMethodforDryAbrasionResistanceofHydrophobicandOmniphobicCoatings1ThisstandardisissuedunderthefixeddesignationD8380;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddescribesaprocedureforevaluatingdryabrasionresistanceofathinhydrophobicoromniphobiccoating,orboth.Thecoatingistypicallylessthan100nmthickandisappliedtoaplanar,glasssubstratebyapplicationmethodsincluding,butnotlimitedto,physicalvapordeposi-tion(PVD),dip,orspray.1.2Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandardwiththeexceptionofangularmeasurementwhicharereportedindegrees.NOTE1—ThistestmethodmeasuresastaticcontactangleandisnotequivalenttoTestMethodC813whichmeasuresanadvancingcontactangle.NOTE2—TestMethodD4060isnotapplicabletohydrophobicandomniphobiccoatingsbecausethemolecularmonolayerdoesnotgenerallyresultinadetectableweightchangetothespecimenaftersubjectingittoabrasion.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C813TestMethodforHydrophobicContaminationonGlassbyContactAngleMeasurementD16TerminologyforPaint,RelatedCoatings,Materials,andApplicationsD1193SpecificationforReagentWaterD4060TestMethodforAbrasionResistanceofOrganicCoatingsbytheTaberAbraserD5946Tes...
