BRITISHSTANDARDBSEN13555:2004Flangesandtheirjoints—GasketparametersandtestproceduresrelevanttothedesignrulesforgasketedcircularflangeconnectionsTheEuropeanStandardEN13555:2004hasthestatusofaBritishStandardICS23.040.60;23.040.80 LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonApr0223:21:38GMT+00:002007,UncontrolledCopy,(c)BSI©BSI13December2004ISBN0580450511NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN13555:2004.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePSE/2,Jointingmaterialsandcompounds,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.DateCommentsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonApr0223:21:38GMT+00:002007,UncontrolledCopy,(c)BSIètresdejointsetmodesopératoiresd'essairelatifsauxrèglesdecalculdesassemblagesàbridescirculairesavecjointFlanscheundihreVerbindungen-DichtungskennwerteundPrüfverfahrenfürdieAnwendungderRegelnfürdieAuslegungvonFlanschverbindungenmitrundenFlanschenundDichtungenThisEuropeanStandardwasapprovedbyCENon27October2004.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©2004CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN13555:2004:ELicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonApr0223:21:38GMT+00:002007,UncontrolledCopy,(c)BSI(E)2ContentsPageForeword......................................................................................................................................................................3Introduction.................................................................................................................................................................41Scope..............................................................................................................................................................52Normativereferences....................................................................................................................................53Notations........................................................................................................................................................64Listofgasketparameters.............................................................................................................................75Definitions......................................................................................................................................................76Testequipment.............................................................