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1、BSENISO9612:2025BSIStandardsPublicationAcousticsDeterminationofoccupationalnoiseexposureMethodologybsi.NationalforewordThisBritishStandardistheUKimplementationofENISO9612:2025.ItisidenticaltoISO9612:2025.ItsupersedesBSENISO9612:2009,whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTe
2、chnicalCommitteeEH13,Residentialandindustrialnoise.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhasbeenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbem
3、ade,andnoresponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completenessorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydisclaimedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.There
4、cipientisadvisedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublicationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.TheBritishStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539209907ICS13.140;17.140.20;17.140.50Co
5、mpliancewithaBritishStandardcannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30June2025.Amendments/corrigendaissuedsincepublicationDateTextaffectedEUROPEANSTANDARDNORMEEUROPEENNEEuropaischenormBSENISO9612:2025ENISO9612
6、June2025Akustik-BestimmungderLarmexpositionamArbeitsplatz-Methodik(ISO9612:2025)ICS13.140SupersedesENISO9612:2009EnglishVersionAcoustics-Determinationofoccupationalnoiseexposure-Methodology(ISO9612:2025)Acoustique-Determinationde!expositionaubruitenmilieudetravail-Methodologie(ISO9612:2025)ThisEurop
7、eanStandardwasapprovedbyCENon5March2024.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapp
8、licationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialver
9、sions.CENmembersarethenationalstandardsbodiesofAustria,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,Slove
10、nia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels2025CENAllrightsofexploitationinanyformandbyanymeansreservedRef.No.ENISO9612:2025Eworldwidefor
11、CENnationalMembers.EuropeanforewordThisdocument(ENISO9612:2025)hasbeenpreparedbyTechnicalCommitteeISO/TC43AcousticsincollaborationwithTechnicalCommitteeCEN/TC211Acoustics“thesecretariatofwhichisheldbyDIN.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltex
12、torbyendorsement,atthelatestbyDecember2025,andconflictingnationalstandardsshallbewithdrawnatthelatestbyDecember2025.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Thisdocumentsupersed
13、esENISO9612:2009.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody/nationalcommittee.AcompletelistingofthesebodiescanbefoundontheCENwebsite.AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisE
14、uropeanStandard: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,Slovenia,Spain,Sweden,Switzerland,Ti
15、irkiyeandtheUnitedKingdom.EndorsementnoticeThetextofISO9612:2025hasbeenapprovedbyCENasENISO9612:2025withoutanymodification.ContentsPageForewordVIntroductionvi2 Normativereferences13 Termsanddefinitions14 Symbols35 Instrumentation55.1 Soundlevelmetersandpersonalsoundexposuremeters55.2 Calibrator55.3
16、Periodicverification66 Methodology-Chronologicalsteps66.1 Step1:Workanalysis66.2 SteP2:SelectionofthemeasurementStrategy66.3 Step3:Measurements66.4 Step4:Errorhandlinganduncertainties66.5 Step5:Calculationandpresentationofresultsanduncertainty67 Workanalysis67.1 General67.2 Defininghomogeneousnoiseexposuregroups(HE
