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BRITISHSTANDARDBSEN1759-3:2003IncorporatingCorrigendumNo.1Flangesandtheirjoints—Circularflangesforpipes,valves,fittingsandaccessories,Classdesignated—Part3:CopperalloyflangesTheEuropeanStandardEN1759-3:2003hasthestatusofaBritishStandardICS23.040.60����������������������������������������������������������������������LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonApr0210:17:30GMT+00:002007,UncontrolledCopy,(c)BSIBSEN1759-3:2003ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon12March2004©BSI25August2004ISBN0580435431NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN1759-3:2003,includingCorrigendumJuly2004.ItsupersedesBS1560-3.3:1989whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePSE/15,Flanges,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to28,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateCommen...