1、BSEN14620-4:2025BSIStandardsPublicationDesignandmanufactureofsitebuilt,vertical,cylindrical,flat-bottomedtanksystemsforthestorageofrefrigerated,liquefiedgaseswithOPeratingtemperaturesbetween00Cand-196CPart4:Insulationcomponentsbsi.NationalforewordThisBritishStandardistheUKimplementationofEN14620-4:2
2、025.ItsupersedesBSEN14620-4:2006,whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePVE/15,StorageTanksforthePetroleumIndustry.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhas
3、beenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbemade,andnoresponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completenessorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydiscla
4、imedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.Therecipientisadvisedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublicationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.TheBriti
5、shStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539214574ICS23.020.10CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30April2025.Amendments/corrigendaissuedsincepublic
6、ationDateTextaffectedEUROPEANSTANDARDNORMEEUROPEENNEApril2025EuropaischenormICS23.020.10SupersedesEN14620-4:2006EnglishVersionDesignandmanufactureofsitebuilt,vertical,cylindrical,flat-bottomedtanksystemsforthestorageofrefrigerated,liquefiedgaseswithoperatingtemperaturesbetween0and-196-Part4:Insulati
7、oncomponentsConceptionetfabricationdereservoirsafondplat,AuslegungundHerstellungStandortgefertigterjverticaux,Cylindriques,construitssursite,destinesauStehender,ZylindrischerFlachboden-Tanksystemenfiirstockagedesgazrefrigeres,liquefies,dontlesdieLagerungvontiefkaltVerfliissigtenGasenbeitemperaturesd
8、eservicesontcomprisesentre0etBetriebstemperaturenzwischen0und-196-Teil196-Partie4:Constituantsisolants4:DammungThisEuropeanStandardwasapprovedbyCENon27January2025.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanation
9、alstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytranslationunde
10、rtheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,
11、Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:Ru
12、edelaScience23,B-1040BrusselsRef.No.EN14620-4:2025E2025CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.PageContentsEuropeanforeword41Scope52Normativereferences53Termsanddefinitions.74Designrequirements,performancecharacteristics,testingandselectionofinsulatingm
13、aterials71.1 General71.2 Analysisofdesignrequirements81.2.1 General81.2.2 Thermalresistance81.2.3 Structuralandtightnessrequirements81.2.4 Ageinganddeterioration91.2.5 Specificdesignrequirements91.3 Assessmentoftheperformancecharacteristics.91.3.1 General91.3.2 Thermalresistance91.3.3 Mechanicalprop
14、erties91.3.4 Temperatureresistance101.3.5 Resistancetowaterandwatervapour101.3.6 Influencesofstoredproduct101.3.7 Chemicalproperties.101.3.8 Firebehaviour111.4 Testingofmaterialsandsystems121.4.1 General121.4.2 Testmethods125 Protectionofinsulation-vapourbarrier135.1 General135.2 Protectivestructure
15、formedbytheoutertank135.3 Protectivecoverforexternalinsulation136 Designofinsulationsystem.146.1 General146.2 Thermaldesign146.3 Structuraldesign156.3.1 General156.3.2 Loadbearinginsulation/compressiveaction156.3.3 Otherloadbearinginsulationmaterials176.3.4 Loadbearinginsulation/otheractions176.4 In
16、sulationforeachtankcomponent176.4.1 General176.4.2 Supportingringbeam186.4.3 Bottominsulation186.4.4 Shellinsulation(external)196.4.5 Shell/wallinsulation(internal)206.4.6 Roofinsulation(external)226.4.7 Roofinsulationonsuspendedroof.226.4.8 Insulationforpenetrationsandinternalpiping227 Installation
17、237.1 General237.2 Requirements237.2.1 Materials237.2.2 Conditionsofworkonsite237.2.3 Anti-corrosiveprotection247.2.4 Constructiontolerances247.2.5 Preventionofdamage247.3 Inspectionandtesting25Annex A (informative)Insulationmaterials26Annex B (normative)Testmethods29Annex C (informative)Recommendat
18、ionsforqualificationcompressivestrengthtestingoftankinsulationsystemmadeofbrittlematerial31Annex D (normative)Non-metallicLiquidbarrieroftheThermalProtectionSystem.32D.lGeneral32D.2Performancerequirements32D.3Materials33D.4ModelTesting33D.5Installation33D.6Examinationandtests33Annex E (informative)3
19、5Bibliography36EuropeanforewordThisdocument(EN14620-4:2025)hasbeenpreparedbyTechnicalCommitteeCEN/TC265,Metallictanksforthestorageofliquids,thesecretariatofwhichisheldbyBSLThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyOc
20、tober2025,andconflictingnationalstandardsshallbewithdrawnatthelatestbyOctober2025.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisdocumentsupersedesEN14620-4:2006.EN14620-4:2025inc
21、ludesthefollowingsignificanttechnicalchangeswithrespecttoEN14620-4:2006: Generaleditorialupdate; Normativereferenceupdated; RecentinsulatingmaterialsEuropeanstandardsintroducedandAnnexBupdated; Aspectsrelatedtoinsulatingmaterialsfirebehaviourdevelopedandclarified; Brittlematerialcompressivebehaviour
22、clarifiedwiththeuseofinterleavingmaterial; RequirementsforInsulationforpenetrationsandinternalpipingintroduced; NewAnnexCaddedabouttherecommendationsforqualificationcompressivestrengthtestingoftankinsulationsystemmadeofbrittlematerial; NewAnnexDfornon-metallicTPSadded; Annexaboutlimitstatetheoryfort
23、ankbottominsulationremoved; NewAnnexEadded,providingguidancefordefiningdutiesandresponsibilitiesbetweenvariouspartiesinvolved.AlistofallpartsintheEN14620series,aDesignandmanufactureofsitebuilt,vertical,cylindrical,flat-bottomedtanksystemsforthestorageofrefrigerated,liquefiedgaseswithoperatingtempera
24、turesbetween0and-196oC,fcanbefoundontheCENwebsite.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody.AcompletelistingofthesebodiescanbefoundontheCENwebsite.AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganisationsofthefollowingcountriesareboundt
25、oimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,SlovenialSpain,Sweden
26、Switzerland,TiirkiyeandtheUnitedKingdom.1 ScopeThisdocumentspecifiestherequirementsformaterials,designandinstallationoftheinsulationofrefrigeratedliquefiedgas(RLG)storagetanksystems.RLGstoragetanksystemsstoreliquefiedgaswithalowboilingpoint,i.e.belownormalambienttemperature.Theconceptofstoringsuchp
27、roductsinliquidformandinnon-pressurizedtanksthereforedependsonthecombinationoflatentheatofvaporizationandthermalinsulation.Consequently,thermalinsulationforRLGstoragetanksystemsisnotanancillarypartofthecontainmentsystem(asformostambientatmospherichydrocarbontanks)butitisanessentialcomponentandthesto
28、ragetanksystemcannotoperatewithoutaproperlydesigned,installedandmaintainedinsulationsystem.ThemainfunctionsoftheinsulationinRLGstoragetanksystemsare: tomaintaintheboiloffduetoheatin-leakatorbelowthespecifiedlimits; tolimitthethermalloadingoftheoutertankcomponents,sotopreventboththeirsuddendamageandp
29、rematureageing(e.g.duetoexternalcondensationandiceformation); topreventdamagebyfrostheaveofthefoundation/soilbeneaththetankbaseslab(incombinationwiththeslabheatingsystemfortanksrestingatgrade); tominimizecondensationandicingontheoutersurfacesofthetank.Awiderangeofinsulationmaterialsisavailable.Howev
30、er,thematerialpropertiesdiffergreatlyamongstthevariousgenericallydifferentmaterialsandalsowithinthesamegenericgroupofmaterials.Therefore,withinthescopeofthisdocument,onlygeneralguidanceonselectionofmaterialsisgiven.NOTEForgeneralguidanceonselectionofmaterials,seeAnnexA.Thisdocumentdealswiththedesign
31、andmanufactureofsitebuiltlvertical,cylindricalflat-bottomedtanksystemsforthestorageofrefrigerated,liquefiedgaseswithoperatingtemperaturesbetween0and-196.2 NormativereferencesThefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordated
32、references,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.EN1363-1,FireresistancetestsPart1:GeneralrequirementsEN1363-2,FireresistancetestsPart2:AlternativeandadditionalproceduresEN1993-l-2lEurocode3DesignofsteelstructuresPart1-
33、2:StructuralfiredesignEN13501-1,FireclassificationOfconstructionproductsandbuildingelementsPart1:ClassificationusingdatafromreactiontofiretestsEN13501-2,FireclassificationOfconstructionproductsandbuildingelementsPart2:Classificationusingdatafromfireresistanceand/orsmokecontroltests,excludingventilat
34、ionservicesEN13381-4,TestmethodsfordeterminingthecontributiontothefireresistanceOfstructuralmembersPart4:AppliedpassiveprotectiontosteelmembersEN14303,ThermalinsulationproductsforbuildingequipmentandindustrialinstallationsFactorymademineralwool(MW)productsSpecificationEN14305:2015,Thermalinsulationp
35、roductsforbuildingequipmentandindustrialinstallationsFactorymadecellularglass(CG)productsSpecificationEN14307,ThermalinsulationproductsforbuildingequipmentandindustrialinstallationsFactorymadeextrudedpolystyrenefoam(XPS)productsSpecificationEN14308,Thermalinsulationproductsforbuildingequipmentandind
36、ustrialinstallationsFactorymaderigidpolyurethanefoam(PUR)andpolyisocyanuratefoam(PIR)productsSpecificationEN14309,ThermalinsulationproductsforbuildingequipmentandindustrialinstallationsFactorymadeproductsofexpandedpolystyrene(EPS)SpecificationEN14314,Thermalinsulationproductsforbuildingequipmentandi
37、ndustrialinstallationsFactorymadephenolicfoam(PF)productsSpecificationEN14620-1:2024,Designandmanufactureofsitebuilt,vertical,cylindrical,flat-bottomedtanksystemsforthestorageofrefrigerated,liquefiedgaseswithoperatingtemperaturesbetween0and196Part1:GeneralEN14620-3:2006,Designandmanufactureofsitebui
38、lt,vertical,cylindrical,flat-bottomedsteeltanksforthestorageofrefrigerated,liquefiedgaseswithoperatingtemperaturesbetween0and-165Part3:ConcretecomponentsEN15599-llThermalinsulationproductsforbuildingequipmentandindustrialinstallationsInsituthermalinsulationformedfromexpandedperlite(EP)productsPart1:
39、Specificationforbondedandloose-fillproductsbeforeinstallationENISO1182,ReactiontofiretestsforproductsNon-Combustibilitytest(ISO1182)ENISO1716,ReactiontofiretestsforproductsDeterminationofthegrossheatofcombustion(calorificvalue)(ISO1716)ENISO12624,Thermalinsulatingproductsforbuildingequipmentandindus
40、trialinstallationsDeterminationoftracequantitiesofwater-solublechloride,fluoride,silicate,sodiumionsandpH(ISO12624)ENISO16534,ThermalinsulatingproductsforbuildingapplicationsDeterminationofcompressivecreep(ISO16534)ENISO16535,ThermalinsulatingproductsforbuildingapplicationsDeterminationoflong-termwa
41、terabsorptionbyimmersion(ISO16535)ENISO29469:2022,ThermalinsulatingproductsforbuildingapplicationsDeterminationofcompressionbehaviour(ISO29469:2022)ISO3951-1,SamplingproceduresforinspectionbyvariablesPart1:Specificationforsinglesamplingplansindexedbyacceptancequalitylimit(AQL)forlot-by-lotinspection
42、forasinglequalitycharacteristicandaSingleAQLASTME84,StandardTestMethodforSurfaceBurningCharacteristicsOfBuildingMaterials3 TermsanddefinitionsForthepurposesofthisdocument,thetermsanddefinitionsgiveninEN14620-1:2024andthefollowingapply.ISOandIECmaintainterminologydatabasesforuseinstandardizationatthe
43、followingaddresses: IECElectropedia:availableathttps:WWW.olectropedia.org/ ISOOnlinebrowsingplatform:availableathttps:WWW.iso.org/obp3.1compressivestrengthdmratioofthemaximumcompressiveforce,Fm,reachedwhenthestrain,atyieldorruptureislessthan10%,totheinitialcross-sectionalareaofthetestspecimenSOURCE:
44、ISO29469:2022,3.23.2compressivestressat10%strainoratioofthecompressiveforce,7olat10%strain,o,totheinitialcross-sectionofthetestspecimenforproductspresenting10%strainbeforepossibleyieldorruptureSOURCE:ISO29469:2022,3.34Designrequirements,performancecharacteristics,testingandselectionofinsulatingmater
45、ials4.1 GeneralTheselectionoftheappropriateinsulationsystemandmaterialsshallbebasedonthefollowing:analysisofdesignrequirements(see4.2); assessmentoftheperformancecharacteristicsofthematerials(see4.3); environmentalaspects.NOTE1RefertoEN14620-1:2024,Clause6.2.Informationontypicalmaterialselectionmayb
46、efoundinAnnexA.SelectedmaterialshallcomplywiththerelevantEuropeanStandardsasfollows(nonexhaustivelist): ExpandedPerlite:EN15599-1; MineralWookEN14303; CellularGlass:EN14305:2015; ExtrudedPolystyrene:EN14307; RigidPolyurethane(PUR)andPolyisocyanurate(PIR)foam:EN14308; ExpandedPolystyrene:EN14309; Phe
47、nolicfoam:EN14314.Otherinsulatingmaterialscanbeusedprovidingtheymeetdesignrequirementsandperformancecharacteristicsspecifiedinthisdocument.Forthespecificapplicationofthisdocument,referalsoto4.3andAnnexBfortheassessmentofperformancecharacteristics.Forinsulationmaterialswheretheproductstandardsdonotspecifytestingmethodstoassessperformancecharacteristicsrequiredby4.3,thetestingmethodsspecifiedintheproductstandardforthesimilarinsulationmaterialsmaybeused(e.g.methodsspecifiedinEN14308canbeusedforPVCfoamperformanceassessment).Otherwise,thetestingmethodstobesuggestedordeveloped.
