API RP 652-2020.docx

ForewordNothingcontainedinanyAPIpub1.icationitobeconstruedasgrantinganyright,byimp1.icationorotherwise.IorthemarHacture.sa1.e,Oruseofanymethod.apparatus,orproductcovetedby1.e<te<spatentNeithershou1.danythingcontainedinthepub1.icationbeconstruedasinsuringanyoneagainst1.iabi1.ityf<xinfringerwntot1.etterspatent.Theverba1.formsusedtoexpresstheprovisionsinttsdocumentareasfo1.tows.Sha1.1.Asusedmastandard,'sha1.1.,denotesaminimumcequirernenttoconformiothestandard.Shou1.d：ASusodinastandard,"shou1.d*denotesarecommendationorthatwhichisadvisedbutnotrequiredtoconformtothestandard.May:Asusedinastandard,"may"denotesacourseofactionpermissiW©withinth©Smitsofastandard.Can:Asusedinastandard,'can"denotesastatementofpossibi1.ityOfcapabi1.ity.TMdocumentwasproducedUnoefAP1.standardizationproceduresthatensureappropriateno<ificat>nandpan®PaHoninthedeve1.opmenta1.processandisdesignatedasanAPIstandard.Questionsncef11ngtheinterpretabonofth©contentofthispub1.icationorcommentsandquestionsconcerningtheproceduresundertchthispub1.ktionwasdeve1.opedshou1.dbeArectedmwritingtotheDirectorofStandards.AmehcanPetro1.eumInstitute.200MassachusettsAvenue.NW.Suite1100,Washington.DC20001.Requestsforpermissiontoreproduceortrans1.atea1.1.oranyparto1.themateria1.pub1.ishedhereinshou1.da1.sobeaddressedtothedirector.Genera1.1.y.APIstandardsarereviewedandrevised,reaffirmed,orwithdraw!at1.easteve<yfiveyears.Aone-timeextensionofuptotwoyearsmayboaddedtothisrewwcyc1.e.StatusofthoPUbfcCagncanboascertainedfromtheAPIStandardsDepartment,te1.ephone(202)62-8000.Acata1.ogofAPIpub1.icationsandmateria1.sispub1.ishedannua1.1.ybyAPI.200MassachusettsAvenue.NW.Suite1100.Washington.DC20001.SuggestedrevisionsareinvitedandShOUfidbesubmittedtoth©StandardsDepartment.API.200MassachusettsAvenue.NW.Suite11.Washington.DC20001,siandardsapi.org.ContentsPwScope-1NcxmativoReferences.13TermsandDe1.inibons2e1.1 Genera1.1.2 C<nica1.Corrosion61.3 ConcentrationCeICorrosion61.4 OxygenCe1.1.Corrosion71.5 Ga1.vancCe1.1.Corrosion-71.6 Microbio1.ogica1.1.yInf1.uencedCorrosion(MIC)71.7 Efosx>coosion71.8 Freitag-re1.atedCfros>n81.9 Genera1.izedv$1.oca1.ized(Pitting)Corrosion81.10 StressCorrosionCracking81.11 Interna1.CorrosionMechanisms85 DeterminationoftboNoodforTankBottom1.ining91.5.1 1.iningsforCorrosionProtection95.2 TankCorrosionHistory95.3 TankFoundationW6 TankBottom1.iningSe1.ection106.1 Genera1.W6.2 InorgaricZi11cZincSificate(K)Z1.116.3 ThinJi1.ETankBottom1.inings126.4 Thck-ti1.mUnreinforcedTankBotiom1.inings136.5 ReinforcedThick-fi1.mTankBottom1.inings146.6 CircumstancesA1.fectingUmngSe1.ection166.7 Se1.ectingInterna1.1.iningsf(xTanksStoringA1.ternateFue1.s187 SurfacePreparabon207.1 Genera1.207.2 Pre-c1.eaning217.3 BottomRepairandSubsequentWe1.dandComponentPrepara1.ion217.4 SurfaceC1.eanhness217.5 SurfaceProfi1.eorAnco<Pattern227.6 AirandAbcasrveCfean1.iness227.7 Remova1.ofSa1.ts227.8 Remova1.ofDu$t22Genera1.Guide1.inesfor1.iningAppfccation.TemperatureandHUEidnyContro1.1.iningThicknessContentsPaoeInspoct>n241.2 Oua1.ificatwnofInspectionPersonne1.1.3 RemmededInspectionParameters10 Eva1.uation.Repair,andRep1.acementofExisting1.inings10.1 Genera1.WJEva1.uationMethods103Eva1.uationCriteriafor1.inings10.4 Eva1.uatingServiceabi1.ityofExisbng1.inings105Determiningth©Causeof1.iningDegradabontFaiIureIOf1.MwngRepairandRep1.acement11 MaximizingUningService1.ifebyProperMateria1.Se1.ectionandSpecification11.1 Genera1.nJUngMate<aSeiectxxi113WrittenSpecification12 Hea1.t,Safety,andEnvironmenta1.242425252525262626就23”111TankEntry29SurfacePreparationand1.iningApp1.ication29Manutac<ufer,sSafetyDataSheets29BiWiOQraphy301.iningsofAbovegroundPetro1.eumStorageTankBottoms1ScopeThtsrecxnrneodedpractice(RPprovidesguidanceonachievingeffectivecorrosioncontro1.iabovegroundstoragetanksbyapp1.ca1.k>noftankbottom1.inings.ItcontainsSkxma1.SpertinenttothoSe1.cCISof1.iningmateria1.s.SUddCePrCaraUon，Sningappkcat»on,cure,and%PCCtionoftankbottomIinmgsforox1.>gandnewstoragetanks.Inmanycases,1.ankbottom1.iningshaveproe11tobeaneffectivemethodofpreventinginterna1.corrosionofs1.ee1.tankbottoms.TheintentofthisRPistoprovideinformationandguidancespecifictoat>veoundStegstoragetanksinhydrocarbonservice.Certainpracticesrecommendedhereinmaya1.sobeappfccaWeIotanksinotherservices.ThrSRPisintendedioserveOnfyasagu<5e.Decai1.edtankbottom1.iningspecificationsareno1.inc1.uded.Becauseofthewdevarietyofserviceenvironments,thisRPdoesno!designatespecifictankbottom1.iningsfor©verysituation.NACENo1O,SSPCPA6andNACENo11'SSPCPA8aro*xiustryconsensusstandardsforinsia1.1.atk)nof1.iningsontankbottomsandvesse1.s.Theyarewri