BS EN 12953-4 2002

BRITISHSTANDARDBSEN12953-4:2002Shellboilers—Part4:WorkmanshipandconstructionofpressurepartsoftheboilerTheEuropeanStandardEN12953-4:2002hasthestatusofaBritishStandardICS27.060.30;27.100NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMay1511:07:56GMT+00:002007,UncontrolledCopy,(c)BSIBSEN12953-4:2002ThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorPolicyandStrategyCommittee,waspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon14June2002©BSI14June2002ISBN0580398501NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN12953-4:2002.ItpartiallysupersedesBS2790:1992whichwillbewithdrawnonpublicationofBSEN12953Parts1,2,3,4,5,6,8and9.WhenthereferencetothisEuropeanStandardhasbeenpublishedintheOfficialJournaloftheEuropeanCommunities(OJ),compliancewithitwillconferapresumptionofconformitywiththeessentialrequirementscoveredbythestandardinrespectofthePressureEquipmentDirective.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePVE/16,Shellboilers,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersofthispublicationareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to44,aninsidebackcoverandabackcover.TheBSIcopyrightdatedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateCommentsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMay1511:07:56GMT+00:002007,UncontrolledCopy,(c)BSIEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN12953-4May2002ICS27.060.30;27.100EnglishversionShellboilers-Part4:WorkmanshipandconstructionofpressurepartsoftheboilerChaudièresàtubesdefumée-Partie4:FabricationetconstructiondespartiessouspressiondeschaudièresGroßwasserraumkessel-Teil4:VerarbeitungundBauausführungfürdrucktragendeKesselteileThisEuropeanStandardwasapprovedbyCENon15May2002.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2002CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12953-4:2002ELicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,TueMay1511:07:56GMT+00:002007,UncontrolledCopy,(c)BSIEN12953-4:2002(E)2ContentsPage1Scope..............................................................................................................................................................42Normativereferences....................................................................................................................................43Termsanddefinitions....................................................................................................................................44Symbols..........................................................................................................................................................45Generalrequirements....................................................................................................................................55.1General............................................................................................................................................................55.2Materialidentification....................................................................................................................................5