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|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN10279:2000IncorporatingCorrigendumNo.1TheEuropeanStandardEN10279:2000hasthestatusofaBritishStandardICS77.140.70NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWHotrolledsteelchannelsÐTolerancesonshape,dimensionandmass©BSI10-2000ISBN0580340244BSEN10279:2000AmendmentsissuedsincepublicationAmd.No.DateComments12002CorrigendumNo.1October2000Amendsshoulderheadings,andcorrectsyearofENNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN10279:2000.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeISE/13,Structuralsteelsections,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to7andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.(8523($167$1'$5'1250((8523e(11((8523b,6&+(1250(1 -DQXDU\,&6(QJOLVKYHUVLRQ+RWUROOHGVWHHOFKDQQHOV±7ROHUDQFHVRQVKDSHGLPHQVLRQVDQGPDVV3URILOpVHQ8HQDFLHUODPLQpVjFKDXG±7ROpUDQFHVVXUODIRUPHOHVGLPHQVLRQVHWODPDVVH:DUPJHZDO]WHU83URILOVWDKO±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e(8523e(1'(1250$/,6$7,21(8523b,6&+(6.20,7(()h5125081*&HQWUDO6HFUHWDULDW UXHGH6WDVVDUW%%UXVVHOV&(1$OOULJKWVRIH[SORLWDWLRQLQDQ\IRUPDQGE\DQ\PHDQVUHVHUYHGZRUOGZLGHIRU&(1QDWLRQDO0HPEHUV5HI1R(1 ((1 %6,&RQWHQWV3DJH6FRSH1RUPDWLYHUHIHUHQFHV'HILQLWLRQV7ROHUDQFHVRQGLPHQVLRQVDQGVKDSH0DVV/HQJWK O 7DEOH²7ROHUDQFHVIRUWDSHUIODQJHFKDQQHOV7DEOH²7ROHUDQFHVIRUSDUDOOHOIODQJHFKDQQHOV(1 %6,)RUHZRUG7KLV(XURSHDQ6WDQGDUGKDVEHHQSUHSDUHGE\7HFKQLFDO&RPPLWWHH(&,667&6WUXFWXUDOVWHHOVHFWLRQVDQGKRWUROOHGVWHHOEDUVIRUHQJLQHHULQJXVH'LPHQVLRQVDQGWROHUDQFHVWKH6HFUHWDULDWRIZKLFKLVKHOGE\%6,7KLV(XURSHD