BS EN 14620-1-2006 Part 1 General

BRITISHSTANDARDBSEN14620-1:2006Designandmanufactureofsitebuilt,vertical,cylindrical,flat-bottomedsteeltanksforthestorageofrefrigerated,liquefiedgaseswithoperatingtemperaturesbetween0°Candp165°C—Part1:GeneralTheEuropeanStandardEN14620-1:2006hasthestatusofaBritishStandardICS23.020.10  LicensedCopy:WangBin,na,FriMar2302:40:28GMT+00:002007,UncontrolledCopy,(c)BSI©BSI2006ISBN0580497755NationalforewordThisBritishStandardwaspublishedbyBSI.ItistheUKimplementationofEN14620-1:2006.ItsupersedesBS7777-1:1993whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePVE/15,Storagetanksforthepetroleumindustry.AlistoforganizationsrepresentedonPVE/15canbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.AmendmentsissuedsincepublicationAmd.No.DateCommentsLicensedCopy:WangBin,na,FriMar2302:40:28GMT+00:002007,UncontrolledCopy,(c)BSI°Cand-165°C-Part1:GeneralConceptionetfabricationderéservoirsenacieràfondplat,verticaux,cylindriques,construitssursite,destinésaustockagedegazréfrigérés,liquéfiés,dontlestempératuresdeservicesontcomprisesentre0°Cet-165°C-Partie1:GénéralitésAuslegungundHerstellungstandortgefertigter,stehender,zylindrischerFlachboden-StahltanksfürdieLagerungvontiefkaltverflüssigtenGasenbeiBetriebstemperaturenzwischen0°Cund-165°C-Teil1:AllgemeinesThisEuropeanStandardwasapprovedbyCENon20February2006.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,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2006CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN14620-1:2006:ELicensedCopy:WangBin,na,FriMar2302:40:28GMT+00:002007,UncontrolledCopy,(c)BSI(E)2ContentsPageForeword.............................................................................................................................................................31Scope......................................................................................................................................................42Normativereferences...........................................................................................................................43Termsanddefinitions...........................................................................................................................54Conceptselection.................................................................................................................................94.1Typesoftank.........................................................................................................................................9Figure1—Examplesofsinglecontainmenttanks......................................................................................11Figure2—Examplesofdoublecontainmenttanks....................................................................................12Figure3—Examplesoffullcontainmenttanks...........................................................................................13Figure4—Exampleofmembranetank.........................................................................................................144.2Riskassessment.................................................................................................................................145Qualityassuranceandqualitycontrol..............................................................................................176Health,safetyandenvironmentplan......................................................................................