NACE SP0403-2015文档格式.docx
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NACE SP0403-2015文档格式.docx
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NACESP0403-2015(formerlyRP0403)ItemNo.21102
StandardPractice
AvoidingCausticStressCorrosionCrackingofRefinery
EquipmentandPiping
ThisNACEInternationalstandardrepresentsaconsensusofthoseindividualmemberswhohavereviewedthisdocument,itsscope,andprovisions.Itsacceptancedoesnotinanyrespectprecludeanyone,whetherheorshehasadoptedthestandardornot,frommanufacturing,marketing,purchasing,orusingproducts,processes,orproceduresnotinconformancewiththisstandard.NothingcontainedinthisNACEstandardistobeconstruedasgrantinganyright,byimplicationorotherwise,tomanufacture,sell,oruseinconnectionwithanymethod,apparatus,orproductcoveredbyletterspatent,orasindemnifyingorprotectinganyoneagainstliabilityforinfringementofletterspatent.Thisstandardrepresentsminimumrequirementsandshouldinnowaybeinterpretedasarestrictionontheuseofbetterproceduresormaterials.Neitheristhisstandardintendedtoapplyinallcasesrelatingtothesubject.Unpredictablecircumstancesmaynegatetheusefulnessofthisstandardinspecificinstances.NACEassumesnoresponsibilityfortheinterpretationoruseofthisstandardbyotherpartiesandacceptsresponsibilityforonlythoseofficialNACEinterpretationsissuedbyNACEinaccordancewithitsgoverningproceduresandpolicieswhichprecludetheissuanceofinterpretationsbyindividualvolunteers.
UsersofthisNACEstandardareresponsibleforreviewingappropriatehealth,safety,environmental,andregulatorydocumentsandfordeterminingtheirapplicabilityinrelationtothisstandardpriortoitsuse.ThisNACEstandardmaynotnecessarilyaddressallpotentialhealthandsafetyproblemsorenvironmentalhazardsassociatedwiththeuseofmaterials,equipment,and/oroperationsdetailedorreferredtowithinthisstandard.UsersofthisNACEstandardarealsoresponsibleforestablishingappropriatehealth,safety,andenvironmentalprotectionpractices,inconsultationwithappropriateregulatoryauthoritiesifnecessary,toachievecompliancewithanyexistingapplicableregulatoryrequirementspriortotheuseofthisstandard.
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ISBN:
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©
2015,NACEInternational
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SP0403-2015
Foreword
Causticisusedinmanypetroleumrefineryapplicationsinawiderangeofconcentrationsandtemperatures.Thisstandardpracticeisintendedtoprovideguidancetothosedesigning,fabricating,and/ormaintainingequipmentandpipingthatareexposedtocausticenvironments.
Causticstresscorrosioncracking(SCO)ofcarbonsteel(CS)equipmenthasbeenreportedinindustrysincethe1930s,e.g.,inrivetedsteamboilers.NACEhaspublishedguidanceforhandlingsodiumhydroxide(NaOH)intheformofa"
CausticServiceChart"
sinceatleastthemid-1960s.ItisbelievedthatthemajorityofthedatausedtoproducethecurvesinthechartweredevelopedbyH.W.Schmidt,et.al.1TheCausticServiceChartiscurrentlypublishedintheNACECorrosionEngineer'
sReferenceBook2AmodifiedcopyofthechartisincludedasFigure1inthisstandardpractice.
Aninformalreviewofcurrentindustrycaustic-handlingpracticeswascompletedin1999.Thisstandardpracticeincorporatesthefindingsofthatsurveyastheyapplytorefineryapplications.
ThisstandardpracticewaspreparedbyNACETaskGroup(TG)177(formerlyT-8-25),"
Refineries,EnvironmentalCracking.,,TG177wasformedin1998todisseminateinformationonenvironmentalcrackinginrefineries.WorkGroup(WG)177awasformedfromthatTGtosurveytheindustryo
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- NACE SP0403-2015 SP0403 2015