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 It supersedes BS EN 352-3:1997 which is withdrawn.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
