BS EN 12021-1999 呼吸防护装置.呼吸装置压缩空气

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN12021:1999IncorporatingCorrigendumNo.1TheEuropeanStandardEN12021:1998hasthestatusofaBritishStandardICS13.340.30NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWRespiratoryprotectivedevicesÐCompressedairforbreathingapparatusLicensedCopy:sheffieldunsheffieldun,na,SatOct2814:53:47GMT+00:002006,UncontrolledCopy,(c)BSIThisBritishStandard,havingbeenpreparedunderthedirectionoftheHealthandEnvironmentSectorCommittee,waspublishedundertheauthorityoftheStandardsCommitteeandcomesintoeffecton15April1999©BSI04-1999ISBN0580320820BSEN12021:1999Issue2,April1999AmendmentsissuedsincepublicationAmd.No.DateTextaffected10517CorrigendumApril1999IndicatedbyasidelineNationalforewordThisBritishStandardistheEnglishlanguageversionofEN12021:1998.Clause6.2.1ofthisEuropeanStandardrequiresthat,ªinanyeventallcontaminantsshallbekepttoaslowalevelaspossibleandshallbebelowthenationalexposurelimitº.NationalOccupationalExposureLimits(OEL)forsubstanceshazardoustohealtharepublishedyearlybytheHealthandSafetyExecutiveandcanbefoundinGuidanceNote,Occupationalexposurelimits(EH40).InthecontextofthisEuropeanStandardªbelowthenationallimitºwillmeanthattheconcentrationlevelshouldnotbegreaterthan10%oftherelevanttime(8h)weightedaverageOEL.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteePH/4,Respiratoryprotection,toSubcommitteePH/4/1,Selectionandterminology,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.LicensedCopy:sheffieldunsheffieldun,na,SatOct2814:53:47GMT+00:002006,UncontrolledCopy,(c)BSIIssue1,April1999BSEN12021:1999©BSI04-1999aSummaryofpagesThefollowingtableidentifiesthecurrentissueofeachpage.Issue1indicatesthatapagehasbeenintroducedforthefirsttimebyamendment.Subsequentissuenumbersindicateanupdatedpage.Verticalsideliningonreplacementpagesindicatesthemostrecentchanges(amendment,addition,deletion).PageIssuePageIssueFrontcoverInsidefrontcoverabENtitlepage221blankoriginalENforeword34InsidebackcoverBackcoveroriginal2originaloriginaloriginalLicensedCopy:sheffieldunsheffieldun,na,SatOct2814:53:47GMT+00:002006,UncontrolledCopy,(c)BSIbblankLicensedCopy:sheffieldunsheffieldun,na,SatOct2814:53:47GMT+00:002006,UncontrolledCopy,(c)BSICENEuropeanCommitteeforStandardizationComiteÂEuropeÂendeNormalisationEuropaÈischesKomiteefuÈrNormungCentralSecretariat:ruedeStassart36,B-1050Brussels©1998CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12021:1998EEUROPEANSTANDARDEN12021NORMEEUROPEÂENNEEUROPAÈISCHENORMDecember1998ICS13.340.30Descriptors:personalprotectiveequipment,respiratoryprotectiveequipment,compressedair,designation,specifications,quality,composition,determinationofcontent,waterEnglishversionRespiratoryprotectivedevicesÐCompressedairforbreathingapparatusAppareilsdeprotectionrespiratoireÐAircomprimeÂpourappareildeprotectionrespiratoireisolantAtemschutzgeraÈteÐDruckluftfuÈrAtemschutzgeraÈteThisEuropeanStandardwasapprovedbyCENon4December1998.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.LicensedCopy:sheffieldunsheffieldun,na,SatOct2814:53:47GMT+00:002006,UncontrolledCopy,(c)BSIPage2EN12021:1998©BSI04-1999ForewordThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC79,Respiratoryprotectivedevices,theSecretariatofwhichisheldbyDIN.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyJune1999,and