|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN1594:2000TheEuropeanStandardEN1594:2000hasthestatusofaBritishStandardICS75.200;NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWGassupplysystemsÐPipelinesformaximumoperatingpressureover16barÐFunctionalrequirementsLicensedCopy::FULLNAME,:DATE,UncontrolledCopy,(c)BSIThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorCommittee,waspublishedundertheauthorityoftheStandardsCommitteeandcomesintoeffecton15June2000©BSI06-2000ISBN0580358712BSEN1594:2000AmendmentsissuedsincepublicationAmd.No.DateCommentsNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN1594:2000.EN1594recognisestheneedformoredetailednationalstandardsandcodesofpracticeintheCENmembercountries.FortheUKadditionalguidanceofthisnaturecanbefoundinBS8010-1andBS8010-2-2.8.InduecourseBS8010-2-2.8willberevisedandreissued.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeGSE/33,GasSupply,toSubcommitteeGSE/33/3,GasSupply:Transmission,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to98,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.LicensedCopy::FULLNAME,:DATE,UncontrolledCopy,(c)BSI(8523($167$1'$5'1250((8523e(11((8523b,6&+(1250(10DUFK,&6(QJOLVKYHUVLRQ*DVVXSSO\V\VWHPV3LSHOLQHVIRUPD[LPXPRSHUDWLQJSUHVVXUHRYHUEDU)XQFWLRQDOUHTXLUHPHQWV6\VWqPHGDOLPHQWDWLRQHQJD]&DQDOLVDWLRQVSRXUSUHVVLRQPD[LPDOHGHVHUYLFHVXSpULHXUHjEDU3UHVFULSWLRQVIRQFWLRQHOOHV*DVYHUVRUJXQJVV\VWHPH5RKUOHLWXQJHQPLWHLQHQPD[LPDO]XOl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e(8523e(1'(1250$/,6$7,21(8523b,6&+(6.20,7(()h5125081*&HQWUDO6HFUHWDULDWUXHGH6WDVVDUW%%UXVVHOV&(1$OOULJKWVRIH[SORLWDWLRQLQDQ\IRUPDQGE\DQ\PHDQVUHVHUYHGZRUOGZLGHIRU&(1QDWLRQDO0HPEHUV5HI1R(1(LicensedCopy::FULLNAME,:DATE,UncontrolledCopy,(c)BSI3DJH(1%6,&RQWHQWV3DJH)RUHZRUG,QWURGXFWLRQ6FRSH1RUPDWLYHUHIHUHQFHV'HILQLWLRQVV\PEROVDQGDEEUHYLDWLRQV4XDOLW\V\VWHP6DIHW\DQGWKHHQYLURQPHQW