iStandardPracticeIn-LineInspectionofPipelinesThisNACEInternationalstandardrepresentsaconsensusofthoseindividualmemberswhohavereviewedthisdocument,itsscope,andprovisions.Itsacceptancedoesnotinanyrespectprecludeanyone,whetherheorshehasadoptedthestandardornot,frommanufacturing,marketing,purchasing,orusingproducts,processes,orproceduresnotinconformancewiththisstandard.NothingcontainedinthisNACEInternationalstandardistobeconstruedasgrantinganyright,byimplicationorotherwise,tomanufacture,sell,oruseinconnectionwithanymethod,apparatus,orproductcoveredbyLettersPatent,orasindemnifyingorprotectinganyoneagainstliabilityforinfringementofLettersPatent.Thisstandardrepresentsminimumrequirementsandshouldinnowaybeinterpretedasarestrictionontheuseofbetterproceduresormaterials.Neitheristhisstandardintendedtoapplyinallcasesrelatingtothesubject.Unpredictablecircumstancesmaynegatetheusefulnessofthisstandardinspecificinstances.NACEInternationalassumesnoresponsibilityfortheinterpretationoruseofthisstandardbyotherpartiesandacceptsresponsibilityforonlythoseofficialNACEInternationalinterpretationsissuedbyNACEInternationalinaccordancewithitsgoverningproceduresandpolicieswhichprecludetheissuanceofinterpretationsbyindividualvolunteers.UsersofthisNACEInternationalstandardareresponsibleforreviewingappropriatehealth,safety,environmental,andregulatorydocumentsandfordeterminingtheirapplicabilityinrelationtothisstandardpriortoitsuse.ThisNACEInternationalstandardmaynotnecessarilyaddressallpotentialhealthandsafetyproblemsorenvironmentalhazardsassociatedwiththeuseofmaterials,equipment,and/oroperationsdetailedorreferredtowithinthisstandard.UsersofthisNACEInternationalstandardarealsoresponsibleforestablishingappropriatehealth,safety,andenvironmentalprotectionpractices,inconsultationwithappropriateregulatoryauthoritiesifnecessary,toachievecompliancewithanyexistingapplicableregulatoryrequirementspriortotheuseofthisstandard.CAUTIONARYNOTICE:NACEInternationalstandardsaresubjecttoperiodicreview,andmayberevisedorwithdrawnatanytimeinaccordancewithNACEtechnicalcommitteeprocedures.NACEInternationalrequiresthatactionbetakentoreaffirm,revise,orwithdrawthisstandardnolaterthanfiveyearsfromthedateofinitialpublicationandsubsequentlyfromthedateofeachreaffirmationorrevision.Theuseriscautionedtoobtainthelatestedition.PurchasersofNACEInternationalstandardsmayreceivecurrentinformationonallstandardsandotherNACEInternationalpublicationsbycontactingtheNACEInternationalFirstServiceDepartment,1440SouthCreekDr.,Houston,Texas77084-4906(telephone+1281-228-6200).Revised2010-03-13Approved2002-02-17NACEInternational1440SouthCreekDriveHouston,Texas77084-4906+1281-228-6200ISBN1-57590-142-0©2010,NACEInternationalNACESP0102-2010(formerlyRP0102)ItemNo.21094CopyrightNACEInternationalProvidedbyIHSunderlicensewithNACENotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,,```,,,,````-`-`,,`,,`,`,,`---//^:^^#^~^^~:~:$:@@:#:$@~$*::~:$~~#^~:^^::*#^#$\\SP0102-2010iiNACEInternationalCopyrightNACEInternationalProvidedbyIHSunderlicensewithNACENotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,,```,,,,````-`-`,,`,,`,`,,`---//^:^^#^~^^~:~:$:@@:#:$@~$*::~:$~~#^~:^^::*#^#$\\SP0102-2010NACEInternationali________________________________________________________________________ForewordSincethetransportationofhydrocarbonsbypipelinebeganinthe1860s,theprimarymeansofestablishingpipelineintegrityhasbeenthroughtheuseofpressuretesting.Thesetestshavebeenmostoftenperformeduponcompletionoftheconstructionofthepipeline.Thecompletedpipelinesegmenthasbeenpressurizedtoalevelequaltoorexceedingtheanticipatedmaximumoperatingpressure(MOP).Governmentregulationshaverecentlyspecifiedthetestpressures,testmedia,andtestdurationsthatmustbeachievedforpipelinestobepermittedtooperatewithintheirjurisdictions.However,untilveryrecently,therehavebeennosuchrequirementsforpipelinestobeperiodicallytestedforintegrity.Somepipelineoperatorshavetraditionallyperformedperiodicintegrityassessmentsinavarietyofformswithvaryingdegreesofsuccess.Inthemid1960s,pipelineoperatorsbegantouseaformofinstrumentedinspectiontechnologythathasevolvedintowhatisknowntodayasin-lineinspection(ILI).ILIisbutonetoolusedinpipelineintegrityassessment.Thetechnologyhasnowbecomesoreliablethatitholdsaprominentplaceinmanyoperators’integrityprogramsbecausewhenproperlyapplied,ILIprovidesmanyeconomiesandefficienciesinintegrityassessmentatarelativelysmallrisk.Thisstandardpracticeoutlinesaprocessofrelatedactivitiesthatapipelineoperatorcanusetoplan,organize,andexecuteanILIproject.GuidelinespertainingtoILIdatamanagementanddataanalysisareincluded.AkeycompanionguidetothisstandardisNACEInternationalPublication35100.1Thisstandardisintendedforusebyindividualsandteamsplanning,implementing,andmanagingILIprojectsandprograms.Theseindividualsincludeengineers,operationsandmaintenancepersonnel,technicians,specialists,constructionpersonnel,andinspectors.Usersofthisstandardmustbefamiliarwithallapplicablepipelinesafetyregulationsforthejurisdictioninwhichthep