|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN10246-4:2000TheEuropeanStandardEN10246-4:1999hasthestatusofaBritishStandardICS23.040.10;77.040.20NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWNon-destructivetestingofsteeltubesÐPart4:Automaticfullperipheralmagnetictransducer/fluxleakagetestingofseamlessferromagneticsteeltubesforthedetectionoftransverseimperfectionsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,FriMay2511:54:18GMT+00:002007,UncontrolledCopy,(c)BSI©BSI02-2000ISBN0580354350BSEN10246-4:2000AmendmentsissuedsincepublicationAmd.No.DateCommentsNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN10246-4:1999.ThisBritishStandardcontainselementsofBS3889-1:1983.AcompletelistofthepartsofEN10246isgiveninannexAofthisstandard.ThisBritishStandardpartiallysupersedesBS3889-1:1983,andwhenallrelevantpartshavebeenpublishedBS3889-1:1983willbewithdrawn.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeISE/73,Steelsforpressurepurposes,toSubcommitteeISE/73/1,Steeltubesforpressurepurposes,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to12,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,FriMay2511:54:18GMT+00:002007,UncontrolledCopy,(c)BSI(8523($167$1'$5'1250((8523e(11((8523b,6&+(1250(11RYHPEHU,&6(QJOLVKYHUVLRQ1RQGHVWUXFWLYHWHVWLQJRIVWHHOWXEHV±3DUW$XWRPDWLFIXOOSHULSKHUDOPDJQHWLFWUDQVGXFHUIOX[OHDNDJHWHVWLQJRIVHDPOHVVIHUURPDJQHWLFVWHHOWXEHVIRUWKHGHWHFWLRQRIWUDQVYHUVHLPSHUIHFWLRQV(VVDLVQRQGHVWUXFWLIVGHVWXEHVHQDFLHU±3DUWLH&RQWU{OHDXWRPDWLTXHSDUIOX[GHIXLWHjO¶DLGHGHSDOSHXUVPDJQpWLTXHVVXUWRXWHODFLUFRQIpUHQFHGHVWXEHVSRXUODGpWHFWLRQGHVLPSHUIHFWLRQVWUDQVYHUVDOHVGHVWXEHVHQDFLHUVIHUURPDJQpWLTXHVVDQVVRXGXUH=HUVW|UXQJVIUHLH3UIXQJYRQ6WDKOURKUHQ±7HLO$XWRPDWLVFKH0DJQHWIHOGVRQGHQ6WUHXIOXSUIXQJQDKWORVHUIHUURPDJQHWLVFKHU6WDKOURKUHEHUGHQJHVDPWHQ5RKUXPIDQJ]XP1DFKZHLVYRQ4XHUIHKOHP7KLV(XURSHDQ6WDQGDUGZDVDSSURYHGE\&(1RQ2FWREHU&(1PHPEHUVDUHERXQGWRFRPSO\ZLWKWKH&(1&(1(/(&,QWHUQDO5HJXODWLRQVZKLFKVWLSXODWHWKHFRQGLWLRQVIRUJLYLQJWKLV(XURSHDQ6WDQGDUGWKHVWDWXVRIDQDWLRQDOVWDQGDUGZLWKRXWDQ\DOWHUDWLRQ8SWRGDWHOLVWVDQGELEOLRJUDSKLFDOUHIHUHQFHVFRQFHUQLQJVXFKQDWLRQDOVWDQGDUGVPD\EHREWDLQHGRQDSSOLFDWLRQWRWKH&HQWUDO6HFUHWDULDWRUWRDQ\&(1PHPEHU7KLV(XURSHDQ6WDQGDUGH[LVWVLQWKUHHRIILFLDOYHUVLRQV(QJOLVK)UHQFK*HUPDQ$YHUVLRQLQDQ\RWKHUODQJXDJHPDGHE\WUDQVODWLRQXQGHUWKHUHVSRQVLELOLW\RID&(1PHPEHULQWRLWVRZQODQJXDJHDQGQRWLILHGWRWKH&HQWUDO6HFUHWDULDWKDVWKHVDPHVWDWXVDVWKHRIILFLDOYHUVLRQV&(1PHPEHUVDUHWKHQDWLRQDOVWDQGDUGVERGLHVRI$XVWULD%HOJLXP&]HFK5HSXEOLF'HQPDUN)LQODQG)UDQFH*HUPDQ\*UHHFH,FHODQG,UHODQG,WDO\/X[HPERXUJ1HWKHUODQGV1RUZD\3RUWXJDO6SDLQ6ZHGHQ6ZLW]HUODQGDQG8QLWHG.LQJGRP(8523($1&200,77(()2567$1'$5',=$7,21&20,7e(8523e(1'(1250$/,6$7,21(8523b,6&+(6.20,7(()h5125081*&HQWUDO6HFUHWDULDWUXHGH6WDVVDUW%%UXVVHOV&(1$OOULJKWVRIH[SORLWDWLRQLQDQ\IRUPDQGE\DQ\PHDQVUHVHUYHGZRUOGZLGHIRU&(1QDWLRQDO0HPEHUV5HI1R(1(LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,FriMay2511:54:18GMT+00:002007,UncontrolledCopy,(c)BSI(1¸%6,&RQWHQWV3DJH)RUHZRUG6FRSH*HQHUDOUHTXLUHPHQW