Designation:F2831−12StandardPracticeforInternalNonStructuralEpoxyBarrierCoatingMaterialUsedInRehabilitationofMetallicPressurizedPipingSystems1ThisstandardisissuedunderthefixeddesignationF2831;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisstandardisintendedtoestablishtheminimumcriterianecessaryforuseofamechanicallymixed,blended,epoxybarriercoating(AWWAClassI)thatisappliedtotheinteriorof1⁄2in.to36in.metallicpipeortubeusedinpressurizedpipingsystemsforcorrosionprotectionandtoimproveflowrates.Thereisnorestrictionastothedevelopedlengthofthepipingsystemotherthanthemethodofapplica-tion(“blowthrough”,spincastorhandsprayed)andthecharacteristicsoftheepoxycoatingbeingappliedbutthemanufacturer’sengineershallbeconsultedforanylimitationsassociatedwiththisproduct,processanditsapplicationfortheenduser.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1600TerminologyforAbbreviatedTermsRelatingtoPlas-ticsD3359TestMethodsforMeasuringAdhesionbyTapeTestD3363TestMethodforFilmHardnessbyPencilTestD4541TestMethodforPull-OffStrengthofCoatingsUsingPortableAdhesionTestersD4752PracticeforMeasuringMEKResistanceofEthylSilicate(Inorganic)Zinc-RichPrimersbySolventRubD4414PracticeforMeasurementofWetFilmThicknessbyNotchGagesF412TerminologyRelatingtoPlasticPipingSystems2.2AWWAStandard:3AWWAC210–LiquidEpoxyCoatingSystemsfortheInteriorandExteriorofSteelWaterPipeline...
