Designation:D7893−13(Reapproved2018)StandardGuideforCorrosionTestPanelPreparation,Testing,andRatingofCoil-CoatedBuildingProducts1ThisstandardisissuedunderthefixeddesignationD7893;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidehasbeenwrittenspecificallyforcoil-coatedmetalbuildingproducts.1.2Thisguideappliestopreparation,testing,andratingofline-coatedandlaboratory-coatedtestpanelsforthepurposeofcomparingandrankingthepanelsforcorrosionresistanceandotherrelatedproperties.1.3Testingmayincludeacceleratedlaboratorycorrosiontestsandoutdoorexposuretests.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2B117PracticeforOperatingSaltSpray(Fog)ApparatusD610PracticeforEvaluatingDegreeofRustingonPaintedSteelSurfacesD714TestMethodforEvaluatingDegreeofBlisteringofPaintsD870PracticeforTestingWaterResistanceofCoatingsUsingWaterImmersionD1654TestMethodforEvaluationofPaintedorCoatedSpecimensSubjectedtoCorrosiveEnvironmentsD1735PracticeforTestingWaterResistanceofCoatingsUsingWaterFogApparatusD2247PracticeforTestingWaterResistanceofCoatingsin100%RelativeHumidityD2803GuideforTestingFiliformCorrosionResistanceofOrganicCoatingsonMetalD3359T...