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1、BSENISO29461-4:2025AirintakefilterSyStemSforrotarymachineryPart4:Testmethodsforstaticfiltersystemsincoastalandoffshoreenvironmentsbsi.NationalforewordThisBritishStandardistheUKimplementationofENISO29461-4:2025.ItisidenticaltoISO29461-4:2025.TheUKparticipationinitspreparationwasentrustedtoTechnicalCo
2、mmitteeMCE/21,Filtersforgasesandliquids.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhasbeenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbemade,andnore
3、sponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completenessorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydisclaimedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.Therecipientisad
4、visedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublicationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.TheBritishStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539172355ICS29.160.99CompliancewithaBritishStandard
5、cannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30April2025.Amendments/corrigendaissuedsincepublicationDateTextaffectedEUROPEANSTANDARD29461-4NORMEEUROPEENNEEuropaischenormICS29.160.99April2025EnglishVersionAirintakef
6、iltersystemsforrotarymachinery-Part4:Testmethodsforstaticfiltersystemsincoastalandoffshoreenvironments(ISO29461-4:2025)Systemesdefiltrationdairdadmissionpourmachinestournantes-Partie4:MethodesdessaidessystemesdefiltrationStatiqueenmilieucotieretoffshore(ISO29461-4:2025)AnsaugfiltersystemevonRotation
7、smaschinen-Priifverfahren-Teil4:PriifverfahrenfurStatischeFiltersystemeinMeeres-undOffshore-Umgebungen(ISO29461-4:2025)ThisEuropeanStandardwasapprovedbyCENon28March2025.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofa
8、nationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytranslati
9、onundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,
10、Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCen
11、tre:RuedelaScience23,B-1040Brussels2025CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.EuropeanforewordThisdocument(ENISO29461-4:2025)hasbeenpreparedbyTechnicalCommitteeISO/TC142CleaningequipmentforairandothergasesincollaborationwithTechnicalCommitteeCEN/TC195C
12、leaningequipmentforairandothergasesthesecretariatofwhichisheldbyUNI.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyOctober2025,andconflictingnationalstandardsshallbewithdrawnatthelatestbyOctober2025.Attentionisdrawntothep
13、ossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody/nationalcommittee.AcompletelistingofthesebodiescanbefoundontheCENwebsite.
14、AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,M
15、alta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandtheUnitedKingdom.EndorsementnoticeThetextofISO29461-4:2025hasbeenapprovedbyCENasENISO29461-4:2025withoutanymodification.ContentsPageForewordvIntroductionvi1 Scope12 N
16、ormativereferences13 Termsanddefinitions13.1 Airflows23.2 Efficiencies24 Symbolsandabbreviatedterms25 Principle36 Testrigandequipment36.1 Testrig36.2 Testduct46.2.1 Testriglayout46.2.2 Testairconditioning56.2.3 Measurementoftheairflowrate56.2.4 Measurementofpressuredrop56.2.5 Solidsaltaerosolmixingsection
