1、BRITISH STANDARD BS EN 142:2002 Respiratory protective devices Mouthpiece assemblies Requirements, testing, marking The European Standard EN 142:2002 has the status of a British Standard ICS 13.340.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 142:2002 This British S
2、tandard, having been prepared under the direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 13 May 2002 BSI 13 May 2002 ISBN 0 580 39692 4 National foreword This British Standard is the offi
3、cial English language version of EN 142:2002. It supersedes BS 7309:1990 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/4, Respiratory protection, to Subcommittee PH/4/3, Facepieces, which has the responsibility to: A list of organizations represe
4、nted on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspond
5、ence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of
6、itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible 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
7、them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 20, 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 A
8、md. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN142 April2002 ICS13.340.30 SupersedesEN142:1989 Englishversion RespiratoryprotectivedevicesMouthpieceassemblies Requirements,testing,marking AppareilsdeprotectionrespiratoireEnsemblesembouts buccauxExigences,essais,marquage Atemsc
9、hutzgerteMundstckgarniturenAnforderungen, Prfung,Kennzeichnung ThisEuropeanStandardwasapprovedbyCENon27December2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelists
10、andbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandn
11、otifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMM
12、ITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN142:2002EEN142:2002(E) 2 Contents page Foreword4 Introduction .5 1 Sco
13、pe 5 2 NormativeReferences .5 3 Termsanddefinitions. .5 4 Description .6 5 Designation.6 6 Requirements .6 6.1 General6 6.2 Ergonomics 6 6.3 Design .6 6.4 Materials6 6.5 Cleaninganddisinfecting . 7 6.6 Resistancetotemperature. .7 6.7 Flammability .7 6.8 Demountableparts . .7 6.9 Replaceablecomponent
14、s 7 6.10 Headharness. .7 6.11 Connection .8 6.11.1 General8 6.11.2 ThreadconnectionaccordingtoEN1481 8 6.11.3 ThreadconnectionaccordingtoEN1482 8 6.12 Inhalationvalvesandexhalationvalves(iffitted) 8 6.12.1 General8 6.12.2 Inhalationvalve(s) 9 6.12.3 Exhalationvalve(s) 9 6.13 Leaktightness.9 6.14 Bre
15、athingresistance . 9 6.14.1 MouthpieceassemblywiththreadconnectionaccordingtoEN14819 6.14.2 MouthpieceassemblywiththreadconnectionaccordingtoEN148210 6.15 Noseclip .10 6.16 Practicalperformance .10 7 Testing 10 7.1 General10 7.2 Nominalvaluesandtolerances . .10 7.3 Visualinspection . 11 7.4 Conditio
16、ning.11 7.5 Flammability .11 7.6 Headharness(pulltest) 11 7.7 Connection .11 7.8 Exhalationvalve(flowtest) .11 7.9 Exhalationvalvehousing(pulltest) 11 7.10 Exhalationvalveleakage. 11 7.10.1 Samples 11 7.10.2 Testequipment . .12 7.10.3 Testprocedure . 12 7.11 Leaktightness.12 7.12 Breathingresistance
17、 . 15 7.13 Practicalperformance .15EN142:2002(E) 3 7.13.1 General15 7.13.2 Walkingtest. .16 7.13.3 Worksimulationtest. .16 8 Marking .16 9 Informationsuppliedbythemanufacturer 17 AnnexA (informative) Marking 19 AnnexZA (informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsorother
18、 provisionsofEUDirectives 20EN142:2002(E) 4 Foreword ThisdocumentEN142:2002hasbeenpreparedbyTechnicalCommitteeCEN/TC79“Respiratoryprotective devices“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,at
19、thelatestbyOctober2002,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2002. ThisdocumentsupersedesEN142:1989. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). Forrelatio
20、nshipwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. TheannexesAandZAareinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finla
21、nd, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom.EN142:2002(E) 5 Introduction Agivenrespiratoryprotectivedevicecanonlybeapprovedwhentheindividualcomponentssatisfythe requirementsofthetestspecificationwhichmaybea
22、completestandardorpartofastandardandpractical performancetestshavebeencarriedoutsuccessfullyoncompleteapparatuswherespecifiedintheappropriate standard.Ifforanyreasonacompleteapparatusisnottestedthensimulationoftheapparatusispermitted providedtherespiratorycharacteristicsandmassdistributionaresimilar
23、tothoseofthecompleteapparatus. 1Scope ThisEuropeanStandardreferstomouthpieceassembliesforrespiratoryprotectivedevices,exceptescape apparatusanddivingapparatus. Itspecifiesminimumrequirementsformouthpieceassembliesforuseaspartofrespiratoryprotectivedevices. Laboratoryandpracticalperformancetestsarein
24、cludedfortheassessmentofcompliancewiththerequirements. 2 NormativeReferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequenta
25、mendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN132, RespiratoryprotectivedevicesDefinitionsoftermsandpictograms. EN134, Respiratoryp
26、rotectivedevicesNomenclatureofcomponents. EN1481, RespiratoryprotectivedevicesThreadsforfacepiecesPart1:Standardthreadconnection. EN1482, RespiratoryprotectivedevicesThreadsforfacepiecesPart2:Centrethreadconnection. EN1483, RespiratoryprotectivedevicesThreadsforfacepiecesPart3:ThreadconnectionM45x3.
27、 EN132742, RespiratoryprotectivedevicesMethodsoftestPart2:Practicalperformancetests EN132743, RespiratoryprotectivedevicesMethodsoftestPart3:Determinationofbreathingresistance. EN132744, RespiratoryprotectivedevicesMethodsoftestPart4:Determinationofresistancetoflameand flammability. 3 Termsanddefini
28、tions ForthepurposeofthisEuropeanStandardthedefinitionsgiveninEN132andthenomenclaturegiveninEN134 apply.EN142:2002(E) 6 4Description Airentersthemouthpieceassemblyandpassesdirectlyintothemouth.Theexhaledairflowsbackeitherthrough thefacepiececonnectorintothebreathingapparatus(closedcircuitbreathingap
29、paratus,pendulumbreathing)or directlytotheambientatmosphere,viatheexhalationvalve(s),inothertypesofrespiratoryprotectivedevices. 5Designation MouthpieceassembliesmeetingtherequirementofthisEuropeanStandardshallbedesignatedinthefollowing manner: MouthpieceassemblyEN142. 6Requirements 6.1General Inall
30、testsalltestsamplesshallmeettherequirements. 6.2Ergonomics Therequirementsofthisstandardareintendedtotakeaccountoftheinteractionbetweenthewearer,the mouthpieceassembly,andwherepossible,theworkingenvironmentinwhichthemouthpieceassemblyislikelyto beused.SeeannexZA. 6.3Design Thedesignofthemouthpieceas
31、semblyshallbesuchastoallowitsinspectioninaccordancewiththe manufacturersinstructions. Themouthpieceassemblyshallbesufficientlyrobusttowithstandtheroughusageitislikelytoreceiveinservice. Themouthpieceassemblyshallbedesignedsothattherearenoprotrudingpartsorsharpedgeslikelytobe caughtonprojectionsinnar
32、rowpassages. Thesurfaceofanypartofthemouthpieceassemblylikelytobeincontactwiththewearershallbefreefromsharp edgesandburrs. Themouthpieceassemblyshallbedesignedtoensureitsfullfunctioninanyorientation. Themouthpieceshallbesodesignedthatinwardleakagebetweenlipsandmouthpieceisnegligible. Themouthpiecesh
33、allbesodesignedthattheairflowisnotrestrictedunintentionallywhenthemouthpiceassembly isbeingworn. Testingshallbedoneinaccordancewith7.3and7.13. 6.4Materials Allmaterialsusedintheconstructionshallhaveadequatemechanicalstrength. Exposedparts,i.e.thosewhichmaybesubjectedtoimpactduringuseoftheapparatussh
34、allnotbemadeof aluminium,magnesium,titaniumoralloyscontainingsuchproportionsofthesemetalsaswill,onimpact,giverise tofrictionalsparkscapableofignitingflammablegasmixtures. Materialswhichcomeintodirectcontactwiththewearersskinshallnotbeknowntobelikelytocauseirritationor anyotheradverseeffecttohealth.E
35、N142:2002(E) 7 Testingshallbedoneinaccordancewith7.3and7.13. 6.5Cleaninganddisinfecting Allmaterialsusedshallwithstandthecleaninganddisinfectionagentsandproceduresrecommendedbythe manufacturer. Testingshallbedoneinaccordancewith7.3and7.13. 6.6Resistancetotemperature Followingtheconditioninginaccorda
36、ncewith7.4andafterbeingallowedtoreturntoambienttemperaturethe mouthpieceassemblyshallshownoappreciabledeformationandanyincorporatedthreadedconnectorto EN1481orEN1482shallbegaugedandshallcomplywiththeappropriatestandard. Testingshallbedoneinaccordancewith7.3. 6.7Flammability Partsofthemouthpieceassem
37、blythatmightbeexposedtoaflameduringuseshallnotburnorcontinuetoburn formorethan5safterremovalfromtheflame. Testingshallbedoneinaccordancewith7.3and7.5. 6.8Demountableparts Alldemountableconnectionsshallbereadilyconnectedandsecured,wherepossiblebyhand.Anymeansof sealingusedshallberetainedinpositionwhe
38、ntheconnectionisdisconnectedduringnormalmaintenance. Testingshallbedoneinaccordancewith7.3and7.13. 6.9Replaceablecomponents Unlessintegralwiththemouthpieceassemblythefollowingcomponents(iffitted)shallbereplaceable: Headharness,connector(s),inhalationandexhalationvalves. Testingshallbedoneinaccordanc
39、ewith7.3. 6.10Headharness Theheadharnessshallbedesignedsothatthemouthpieceassemblycanbedonnedandremovedeasily. Testingshallbedoneinaccordancewith7.13. Theheadharnessshallbeadjustableorselfadjustingandshallholdthemouthpieceassemblyfirmlyand comfortablyinposition. Testingshallbedoneinaccordancewith7.1
40、3. Eachstrapoftheheadharness,bucklesandotheradjustingmeansshallwithstandapullof50Nappliedfor10s inthedirectionofpullingwhenthefacepieceisdonned.Nobreaksorslidingofthestrapsshalloccur. Therequirementappliestothebucklesandattachmentlugsaswellastothestraps. Testingshallbedoneinaccordancewith7.3and7.6.E
41、N142:2002(E) 8 6.11Connection 6.11.1General Theconnectionbetweenthemouthpieceassemblyandtheapparatusmaybeachievedbyapermanentorspecial (e.g.insert)typeofconnectionorbyathreadconnection. Testingshallbedoneinaccordancewith7.3. ThemouthpieceassemblyshallnotbeequippedwithathreadconnectionaccordingtoEN14
42、83. Testingshallbedoneinaccordancewith7.3. Correctandreliableconnectionbetweenmouthpieceassemblyandotherpartsoftherespiratoryprotectivedevice shallbeassured. Testingshallbedoneinaccordancewith7.3,7.11and7.13. Theconnectionbetweenthemouthpiecebodyandtheconnectorshallbesufficientlyrobusttowithstandaxi
43、allya tensileforceof50N. Testingshallbedoneinaccordancewith7.7. 6.11.2 ThreadconnectionaccordingtoEN1481 Thisthreadconnectionmaybeusedasthemouthpieceassemblyconnectionforallrespiratoryprotectivedevices, exceptclosedcircuitbreathingapparatusandpositivepressuredemandbreathingapparatus. Ifthisthreadcon
44、nectionisusedthentherelevantrequirementsofEN1481shallbesatisfied. Testingshallbedoneinaccordancewith7.3. 6.11.3 ThreadconnectionaccordingtoEN1482 Thisthreadconnectionmaybeusedasthemouthpieceassemblyconnectionforclosedcircuitbreathing apparatus. IfthisthreadconnectionisusedthentherelevantrequirementsofEN1482shallbesatisfied. Testingshallbedoneinaccordancewith7.3. 6.12 Inhalationvalvesandexhalationvalves(iffit
