Designation:D6294/D6294M−13(Reapproved2019)StandardTestMethodforCorrosionResistanceofFerrousMetalFastenerAssembliesUsedinRoofingandWaterproofing1ThisstandardisissuedunderthefixeddesignationD6294/D6294M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverscomponentsofferrousmetalfastenerassemblies,excludingthoseofstainlesssteel,suchasfasteners,stressplates,andbattenbarsusedinlowsloperoofingandwaterproofing,toasulfurousacidenvironment.Thistestmethodevaluatesrelativecorrosionresistanceofthecomponentsbydeterminationofpercentageofrustorwhiterust.1.2Thecomponentsmayormaynothaveasurfacetreat-mentapplied.1.3Alimitingfactoristhesubjectivenesswhendeterminingactualpercentageofrustorwhiterustcorrosion.1.4Otherperformancecharacteristicsofferrousmetalcom-ponentssuchasabrasionresistanceofbarriercoatingsarenotevaluatedinthismethod.1.5ThistestmethodwasdevelopedbasedonPracticeG87.1.6ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.8Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D16TerminologyforPaint,RelatedCoatings,...