|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN10272:2000TheEuropeanStandardEN10272:2000hasthestatusofaBritishStandardICS77.140.30NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWStainlesssteelbarsforpressurepurposesLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun0201:30:41GMT+00:002007,UncontrolledCopy,(c)BSI©BSI12-2000ISBN0580364992BSEN10272:2000AmendmentsissuedsincepublicationAmd.No.DateCommentsNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN10272:2000.Thisstandard,alongwithBSEN10273:2000,supersedesBS1502:1982whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeISE/30,Stainlesssteels,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to39andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun0201:30:41GMT+00:002007,UncontrolledCopy,(c)BSI(8523($167$1'$5'1250((8523e(11((8523b,6&+(1250(12FWREHU,&6(QJOLVKYHUVLRQ6WDLQOHVVVWHHOEDUVIRUSUHVVXUHSXUSRVHV%DUUHVHQDFLHULQR[\GDEOHSRXUDSSDUHLOVjSUHVVLRQ1LFKWURVWHQGH6WlEHIU'UXFNEHKl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e(8523e(1'(1250$/,6$7,21(8523b,6&+(6.20,7(()h5125081*&HQWUDO6HFUHWDULDWUXHGH6WDVVDUW%%UXVVHOV&(1$OOULJKWVRIH[SORLWDWLRQLQDQ\IRUPDQGE\DQ\PHDQVUHVHUYHGZRUOGZLGHIRU&(1QDWLRQDO0HPEHUV5HI1R(1(LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun0201:30:41GMT+00:002007,UncontrolledCopy,(c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icensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun0201:30:41GMT+00:002007,UncontrolledCopy,(c)BSI(1%6,0DUNLQJ$QQH[$LQIRUPDWLYH*XLGHOLQHVIRUIXUWKHUWUHDWPHQWLQFOXGLQJKHDWWUHDWPHQWLQIDEULFDWLRQ$QQH[%LQIRUPDWLYH3UHOLPLQDU\UHIHUHQFHGDWDIRUWKHWHQVLOHVWUHQJWKRIDXVWHQLWLFIHUULWLFVWHHOVDWHOHYDWHGWHPSHUDWXUHV$QQH[&LQIRUPDWLYH$SSOLFDEOHGLPHQVLRQDOVWDQGDUGV$QQH['LQIRUPDWLYH1DWLRQDO$GHYLDWLRQV$QQH[=$LQIRUPDWLYH&ODXVHVRIWKLV(XURSHDQ6WDQGDUGDGGUHVVLQJHVVHQWLDOUHTXLU