BS EN 12517-2-2008 焊缝的无损检验.通过射线照相术评估铝及铝合金的焊接接头.验收等

BSEN12517-2:2008ICS25.160.40NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDNon-destructivetestingofweldsPart2:Evaluationofweldedjointsinaluminiumanditsalloysbyradiography—AcceptancelevelsThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30©BSI2008ISBN9780580554926Amendments/corrigendaissuedsincepublicationDateCommentsBSEN12517-2:2008NationalforewordThisBritishStandardistheUKimplementationofEN12517-2:2008.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeWEE/46,Non-destructivetesting.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.September2008BSEN12517-2:2008EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN12517-2August2008ICS25.160.40EnglishVersionNon-destructivetestingofwelds-Part2:Evaluationofweldedjointsinaluminiumanditsalloysbyradiography-AcceptancelevelsEssaisnondestructifsdesassemblagessoudés-Partie2:Évaluationparradiographiedesassemblagessoudésenaluminiumetsesalliages-Niveauxd'acceptationZerstörungsfreiePrüfungvonSchweißverbindungen-Teil2:BewertungvonSchweißverbindungeninAluminiumundseinenLegierungenmitDurchstrahlung-ZulässigkeitsgrenzenThisEuropeanStandardwasapprovedbyCENon18July2008.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2008CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12517-2:2008:EBSEN12517-2:2008EN12517-2:2008(E)2ContentsPageForeword..............................................................................................................................................................31Scope......................................................................................................................................................42Normativereferences............................................................................................................................43Radiographictechnique........................................................................................................................44General....................................................................................................................................................55Acceptancelevels..................................................................................................................................5AnnexA(informative)Guidetothelimitationsofradiographictesting).......................................................8A.1Volumetricimperfectionsinbuttwelds...............................................................................................8A.2Cracksinbuttwelds..............................................................................................................................8A.3Planarimperfectionsinbuttwelds......................................................................................................8AnnexB(informative)Examplesfordeterminationofpercentage(%)ofimperfections............................9AnnexC(informative)Sumofacceptableareas............................................................................................11Bibliography......................................................................................................................................................13BSEN12517-2:2008EN12517-2:2008(E)3ForewordThisdocument(EN12517-2:2008)hasbeenpreparedbyTechnicalCommitteeCEN/TC121“Welding”,thesecretariatofwhichisheldbyDIN.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyFebruary2009,andconflictingnationalstandardsshallbewithdrawnatthelatestbyFebruary2009.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CEN[and/orCENELEC]shallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.EN12517Non-destructivetestingofwel