LicensedCopy:opu-jwb94opu-jwb94,OpenUniversityTheJISC,01November2004,UncontrolledCopy,(c)BSI—DestructivetestsofbrazedjointsTheEuropeanStandardEN12797:2000,withtheincorporationofamendmentA1:2003hasthestatusofaBritishStandardICS25.160.50 LicensedCopy:opu-jwb94opu-jwb94,OpenUniversityTheJISC,01November2004,UncontrolledCopy,(c)BSI©BSI11February2004ISBN0580362256NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN12797:2000,includingamendmentA1:2003.TogetherwithBSEN12799:2000itsupersedesBS1723-3:1988whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeWEE/19,Brazingandbronzewelding,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to31andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateComments1493211February2004ModificationstocontentsandforewordpagesanddeletionofAnnexZALicensedCopy:opu-jwb94opu-jwb94,OpenUniversityTheJISC,01November2004,UncontrolledCopy,(c)BSI–Destructivetestsofbrazedjoints(includesamendmentA1:2003)Brasagefort–Essaisdestructifsdesassemblagesréalisésparbrasagefort(inclutl’amendementA1:2003)Hartlöten–ZerstörendePrüfungvonHartlötverbindungen(enthältÄnderungA1:2003)ThisEuropeanStandardwasapprovedbyCENon2July2000,andamendmentA1:2003wasapprovedbyCENon20November2003.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2000CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12797:2000+A1:2003ELicensedCopy:opu-jwb94opu-jwb94,OpenUniversityTheJISC,01November2004,UncontrolledCopy,(c)BSI(informative)Imperfectionsinbrazedjoints29LicensedCopy:opu-jwb94opu-jwb94,OpenUniversityTheJISC,01November2004,UncontrolledCopy,(c)BSI:Austria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.ForewordtoamendmentA1ThisdocumentEN12797:2