BS EN 352-3-2002 Hearing protectors - Safety requirements and testing - Ear-muffs attached to an industrial safety helmet《护听器 安全要求和试验 工业安全头盔的耳套》.pdf

1、BRITISH STANDARD BS EN 352-3:2002 Hearing protectors General requirements Part 3: Ear-Muffs attached to an industrial safety helmet The European Standard EN 352-3:2002 has the status of a British Standard ICS 13.340.20 BS EN 352-3:2002 This British Standard, having been prepared under the direction

2、of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 31 October 2002 BSI 31 October 2002 ISBN 0 580 40668 7 National foreword This British Standard is the official English language version of EN 352-3:

3、2002. It supersedes BS EN 352-3:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PH/7, Hearing protectors, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-re

4、ferences The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of Brit

5、ish Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; presen

6、t to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an in

7、side front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3523 Oc

8、tober2002 ICS13.340.20 SupersedesEN3523:1996 Englishversion HearingprotectorsGeneralrequirementsPart3:Earmuffs attachedtoanindustrialsafetyhelmet ProtecteursindividuelscontrelebruitExigences gnralesPartie3:Serrettemontssurcasquede protectionpourlindustrie GehrschtzerAllgemeineAnforderungenTeil3:An I

9、ndustriehelmenbefestigteKapselgehrschtzer ThisEuropeanStandardwasapprovedbyCENon18August2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalrefer

10、encesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementC

11、entrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION

12、 COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3523:2002EEN3523:2002(E) 2 Contents page Foreword3 Introduction .4 1 Scope 5 2 Normativerefer

13、ences 5 3 Termsanddefinitions . 5 4 Requirements.7 4.1Sizing . .7 4.2Materialsandconstruction. .7 4.3Performance 7 5 Marking.10 6 Informationsuppliedbythemanufacturer .10 6.1General .10 6.2Wearerinformation . 11 6.3Additionalinformation . 12 AnnexA (informative)Uncertaintyofmeasurementandinterpretat

14、ionoftestresults13 AnnexZA (informative) ClausesofthisEuropeanstandardaddressingessentialrequirementsor otherprovisionsofEUDirectives .15 Bibliography 16EN3523:2002(E) 3 Foreword Thisdocument(EN3523:2002)hasbeenpreparedbyTechnicalCommitteeCEN/TC159,“Hearingprotectors“, thesecretariatofwhichisheldbyS

15、IS. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyApril2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby April2003. ThisdocumentsupersedesEN3523:1996. ThisdocumenthasbeenpreparedunderamandategiventoCENby

16、theEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). ForrelationshipwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countri

17、esareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom. AnnexAisinformative.EN3523:2002(E) 4 Introduction Thisstandardfor”HearingPro

18、tectors:Earmuffsattachedtoanindustrialsafetyhelmet:Generalrequirements”, setsrequirementsforpersonalhearingprotectiondevicesinrelationtoDirective89/686/EECPersonalProtective Equipment. Theparticularrequirementinrelationtotheabilityofhearingprotectorstoreducenoisebelowdailylimitlevelsis addressedinth

19、estandardbyrequiringthesoundattenuationofthehearingprotectors,measuredinaccordance withEN248691,tobenotlessthanaspecifiedminimum.Further,byrequiringthatthemeasuredsound attenuationbedeclared,theselectionofsuitablehearingprotectorsforindividualcircumstancesmaybe undertakenaccordingtoestablishedpracti

20、ce. EN3521dealswithrequirementsforearmuffs,EN3522withearplugs,EN3523withearmuffsattachedto industrialsafetyhelmets.EN13819dealswithtestingplanscommontoalltypesofhearingprotectorscoveredby thisseriesofprENs,andisintwoParts;Part1:Physicaltestmethods,andPart2:Acoustictestmethods. Additionalsafetyrequir

21、ementsandtheassociatedtestproceduresforleveldependentearmuffsarecontainedin EN3524,forearmuffswithactivenoisereductioninprEN3525,forearmuffswithaudiocommunicationsinprEN 3526andforleveldependentearplugsinprEN3527. ThePartsofprEN352,otherthanParts1,2and3,covertheperformanceoffunctionsadditionaltopass

22、ive hearingprotection.Hearingprotectorswhichincorporateoneormoreofthesefunctionsaresubjecttothe requirementsandtestsofeachoftherelevantPartsofprEN352,includingParts1,2or3,asappropriate. AnassociatedstandardEN458,coversselection,use,careandmaintenanceofhearingprotectors. TherequirementsofEN3523arecon

23、cernedprimarilywiththephysicalandacousticperformanceoftheearmuffs fittedtoanindustrialhelmetwhichcomplieswithEN397. Thesizingrequirementsenablethegreatmajorityoftheindustrialpopulationtobefittedsatisfactorilyby”medium sizerange”helmetmountedearmuffs.Populationsofothersizesmaybeaccommodatedby”smallsi

24、zerange”or ”largesizerange”helmetmountedearmuffs,whicharerequiredtobeaccompaniedbyinformationregardingthe rangeofsizeswhichtheyaredesignedtofit. Thestandardalsocallsforthevaluesofsoundattenuationaffordedbythehelmetmountedearmuffs(measuredin accordancewithEN248691)inordertoassistpurchasersinselecting

25、themostappropriatemodelfortheirneeds. Minimumvaluesofsoundattenuationarealsospecified. Amaximumvariabilityininsertionloss,measuredobjectivelyafteraseriesofperformancetests,isspecified.The objectivetestmethodonlyfacilitatesthemakingofcomparativemeasurements,andtheinsertionlossvalues obtainedwilldiffe

26、rfromthemeasuredsoundattenuationvalues. Thelatter,whichrequirethehelmetmountedearmuffstobetestedwhilstbeingwornbyhumantestsubjects,is regardedasprovidingthereferencetestmethodforthemeasurementoftheacousticperformanceofhearing protectors.EN3523:2002(E) 5 1Scope Thispartofthestandardspecifiesrequireme

27、ntsforconstruction,design,performance,markinganduser informationforearmuffsfittedtoanindustrialhelmetwhichcomplieswithEN397. Inparticular,itspecifiesthesoundattenuationofthehelmetmountedearmuffs,measuredinaccordancewithEN 248691. Becauseonemodelofearmuffsdesignedtobeattachedtoanindustrialsafetyhelme

28、tcanbefittedtoanumberof helmetmodelsandsizes,thispartofthestandardsetsoutaseriesofphysicalandacousticrequirementsforthe earmuffswhenfittedtothespecifiedmodel(s)orsize(s)ofhelmet. Allrequirementsapplytotheearmuffsfittedtooneofthespecifiedmodelsorsizesofhelmet(thebasic combination),andanabbreviatedset

29、ofrequirementsapplytothesamemodelofearmuffswhenfittedtotheother specifiedmodelsorsizesofhelmet(thesupplementarycombinations). Informationontherangemodelsofhelmettestedwiththeearmuffs,andforwhichthecombinationsatisfiedthis standard,isrequiredtobemadeavailable. Ergonomicaspectsareaddressedbytakinginto

30、account,withintherequirements,theinteractionbetweenthe wearer,thedeviceandwherepossibletheworkingenvironmentinwhichthedeviceislikelytobeused(seeAnnex ZAandEN458). 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferences

31、arecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(in

32、cludingamendments). EN138191:2002 ,HearingprotectorsTestingPart1:Physicaltestmethods EN138192:2002 ,HearingprotectorsTestingPart2:Acoustictestmethods EN397 ,Industrialsafetyhelmets EN960:1994 ,Headformsforuseinthetestingofprotectivehelmets ENISO48692, AcousticsHearingprotectorsPart2:Estimationofeffe

33、ctiveAweightedsoundpressurelevels whenhearingprotectorsareworn(ISO48692:1994) 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply: 3.1 cup hollowcomponentwhichismountedontheequivalentheadbandandtowhichacushionandalinerareusually fitted 3.2 cupsupportingarm

34、 arm,usuallyofmetalorplastics,attachedtothesafetyhelmetshellanddesignedtoenabletheearmuffscuptofit securelyaroundtheearbyexertingpressurethroughthecushion.Itincludesthemeansofattachmenttothe safetyhelmetshell 3.3 cushion deformablecomponent,usuallycontainingafoamplasticorfluidfilling,fittedtotherimo

35、fthecuptoimprovethe comfortandfitoftheearmuffsontheheadEN3523:2002(E) 6 3.4 liner acousticallyabsorptivematerialcontainedwithinthecupwhichisintendedtoincreasetheattenuationoftheear muffsatcertainfrequencies 3.5 earmuffs hearingprotectorconsistingofacuptobepressedagainsteachpinnaorofacircumauralcupto

36、bepressed againsttheheadaroundeachpinna.Thecupsmaybepressedagainsttheheadwithaheadbandorbymeansof adeviceattachedtoasafetyhelmetorotherequipment 3.6 headband banddesignedtoenabletheearmuffstofitsecurelyaroundtheearsbyexertingforceagainstthecupsand pressurethroughthecushions.Inthecaseofhelmetmountede

37、armuffsitisdeemedtobethatpartofthehelmet mountedearmuffswhichsupportsthecups.Itcomprisesthesafetyhelmetshellandthecupsupportarms,andis intendedtobefunctionallyequivalenttotheheadbandofheadbandearmuffs 3.7 helmet headgear,primarilyintendedtoprotecttheupperpartofawearersheadagainstinjuryfromfallingobj

38、ectsand whichcomplieswiththerequirementsofEN397 3.8 externalverticaldistance verticaldistancebetweenthetopofthetestheadformonwhichthehelmetismountedandthehighestpointonthe outsidesurfaceofthehelmetshell 3.9 insertionloss meanalgebraicdifferenceindecibelsbetweentheonethirdoctavebandsoundpressurelevel

39、,measuredbythe microphoneoftheacoustictestfixtureinaspecifiedsoundfieldunderspecifiedconditions,withthehearing protectorabsent,andthesoundpressurelevelwiththehearingprotectoron,withotherconditionsidentical 3.10 parkingposition positionoftheearmuffsinwhichthecupsarelocatedabovetheleveloftheloweredgeo

40、fthehelmetshell,as specifiedbytheearmuffsmanufacturerinaccordancewith6.2(h)(seealso3.12) 3.11 soundattenuation foragiventestsignal,themeandifferenceindecibelsbetweenthethresholdofhearingwithandwithoutthe hearingprotectorinplace,forapaneloftestsubjects 3.12 standbyposition positionoftheearmuffsinwhic

41、hthecupsarelocatedbelowtheleveloftheloweredgeofthehelmetshellandin whichthecushionsareheldawayfromthesideoftheheadorpinna(seealso3.10) 3.13 basiccombination helmetmountedearmuffswhichincludesthefirstoronlymodelorsizeofhelmettowhichagivenmodelofear muffsisfitted,andwhichwillundergoallthetestsinthesta

42、ndard(seealso3.14) 3.14 supplementarycombination helmetmountedearmuffswhichincludeamodelorsizeofhelmet,(otherthanthehelmetofthebasic combination),towhichisfittedthesamemodelofearmuffsasforthebasiccombination,andwhichwillundergo anabbreviatedsetoftests(seealso3.13)EN3523:2002(E) 7 3.15 hygienecovers

43、temporary,disposablecoversfittedoverthecushionsandintendedtoprotectthemfromtheeffectsofdirt, perspirationandcosmetics,etc 4Requirements 4.1Sizing Helmetmountedearmuffsshallbeclassifiedintothreesizeranges,Mediumsizerange,Smallsizerangeand Largesizerange. Mediumsizerangeearmuffsshallbesoclassifiediftheiradjustabilitycomplieswithclause4.3.2.2. Smallsizerangeearmuffsshallbesoclassifiediftheiradjustabilitycomplieswith4.3.2.3. Largesiz