Designation:F2831−19StandardPracticeforInternalNonStructuralEpoxyBarrierCoatingMaterialUsedInRehabilitationofMetallicPressurizedPipingSystems1ThisstandardisissuedunderthefixeddesignationF2831;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisstandardisintendedtoestablishtheminimumcriterianecessaryforuseofamechanicallymixed,blended,epoxybarriercoating(AWWAClassI)thatisappliedtotheinteriorof1⁄2in.(12.7mm)to36in.(914.4mm)metallicpipeortubeusedinpressurizedpipingsystemsforcorrosionprotectionandtoimproveflowrates.Thereisnorestrictionastothedevelopedlengthofthepipingsystemotherthanthemethodofapplication(“blowthrough”,spincastorhandsprayed)andthecharacteristicsoftheepoxycoatingbeingappliedbutthemanufacturer’sengineershallbeconsultedforanylimitationsassociatedwiththisproduct,processanditsapplicationfortheenduser.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1600TerminologyforAbbreviatedTermsRelatingtoPlas-ticsD3359TestMethodsforRatingAdhesionbyTapeTestD3363TestMethodforFilmHardnessbyPencilTestD4541TestMethodforPull-OffStrengthofCoatingsUsingP...
