1、BRITISH STANDARD BS EN 14042:2003 Workplace atmospheres Guide for the application and use of procedures for the assessment of exposure to chemical and biological agents The European Standard EN 14042:2003 has the status of a British Standard ICS 13.040.30 BS EN 14042:2003 This British Standard was p
2、ublished under the authority of the Standards Policy and Strategy Committee on 24 April 2003 BSI 24 April 2003 ISBN 0 580 41625 9 National foreword This British Standard is the official English language version of EN 14042:2003. The UK participation in its preparation was entrusted by Technical Comm
3、ittee EH/2, Air Quality, to Subcommittee EH/2/2, Workspace atmospheres,which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications
4、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 British Standards Online. This publication does not purport to include all the necessary p
5、rovisions 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; present to the responsible international/European committee any enquiries on the interpretat
6、ion, 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 inside front cover, the EN title page, pages 2 to 40, an inside back cover and a back co
7、ver. 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 EN14042 April2003 ICS13.040.30 Englishversion WorkplaceatmospheresGuidefortheapplicationanduseo
8、f proceduresfortheassessmentofexposuretochemicaland biologicalagents AtmosphresdeslieuxdetravailGuidepourlapplication etlutilisationdeprocdurespermettantdvaluer lexpositionauxagentschimiquesetbiologiques ArbeitsplatzatmosphreLeitfadenfrdieAnwendungund denEinsatzvonVerfahrenundGertenzurErmittlung che
9、mischerundbiologischerArbeitsstoffe ThisEuropeanStandardwasapprovedbyCENon23September2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferenc
10、esconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCent
11、rehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFO
12、RSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14042:2003EEN14042:2003(E) 2 Contents Foreword4 Introduction .5 1 Scope 5 2 N
13、ormativereferences 5 3 Termsanddefinitions. .6 4 Measurementobjectivesandstrategy. 9 4.1 General9 4.2 EN689 .9 4.2.1 General9 4.2.2 Occupationalexposureassessment .9 4.2.3 Periodicmeasurements . .10 4.2.4 Reassessment10 4.2.5 Measurementstrategy .10 4.3 EN482 .11 4.4 Othertasks . 11 5 Selectionofthe
14、measurementprocedureordevice 12 5.1 General12 5.2 Selectionflowchart .13 5.3 Selectivityrequirements .16 5.4 Theinfluenceofenvironmentalparameters . 17 5.5 Fitnessforpurpose . 17 6 Operatingprinciplesandcharacteristics 17 6.1 General17 6.2 Measurementofchemicalagents 18 6.2.1 Shorttermdetectortubes.
15、 18 6.2.2 Proceduresusinganimpinger/bubblerassampler. 19 6.2.3 Proceduresusingadenuderassampler . .20 6.2.4 Proceduresusingaparticleselectortosamplesizefractions. 21 6.2.5 Procedurestomeasurechemicalagentspresentasmixturesofparticlesandvapour22 6.2.6 Proceduresusing pumpedsamplersforgasesandvapours.
16、23 6.2.7 Proceduresusingdiffusivesamplers. .24 6.2.8 Procedurestomeasuremetalsandmetalloidsinairborneparticles.25 6.2.9 Proceduresusingbagsandcanistersforsampling 26 6.3 Measurementofairbornemicroorganismsandendotoxin27 6.3.1 Methodsusinganimpactorassampler 27 6.3.2 Proceduresusingimpingersassampler
17、s 28 6.3.3 Proceduresusingfiltrationsamplers 29 7 Operationofthemeasuringdevices 29 7.1 Guidanceforuseofmeasuringproceduresandpersonal,portableandtransportable measuringdevices .29 7.1.1 General29 7.1.2 Transportation30 7.1.3 Storageconditionsandshelflife . 30 7.1.4 Fieldmeasurements 30 7.1.5 Inspec
18、tionandfieldcheck 31 7.2 Guidanceforuseoffixedmeasuringdevices . .31 7.2.1 General31 7.2.2 Installation 32 7.2.3 Location 32 7.2.4 Inspectionandfieldcheck 33EN14042:2003(E) 3 8 Recommendationsontheuseofsamplingpumps .3 4 8.1 General34 8.2 Factorsinfluencingtheflowratestabilityofapump . .34 8.3 Flowr
19、atecalibration. .35 8.4 Calculationofflowratesandsamplingvolumes .36 8.4.1 Meanvolumetricflowrate. 36 8.4.2 Samplingvolume . 36 9 Maintenanceandcalibration . .37 10 Disposalofmeasuringdevices 38 11 Requirementsfortraining .38 12 Qualityassurance 38 Bibliography 39EN14042:2003(E) 4 Foreword Thisdocum
20、ent(EN14042:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC 137“Assessmentof workplaceexposure”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2003,andconflictingnationalstandardss
21、hallbewithdrawnatthelatest byOctober2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,
22、Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom. ThisdocumentincludesaBibliography.EN14042:2003(E) 5 Introduction MarkingEN14042onorinrelationtoaproductrepresentsamanufacturersdeclarationofconformity,i.e.aclaim byoronbehalfofthemanufacturerthattheproductmeetstherequ
23、irementsofrelevantEuropeanstandards.The accuracyoftheclaimisthereforetheresponsibilityofthepersonmakingtheclaim. 1Scope ThisEuropeanStandardprovidesguidanceontheselectionofprocedures,andtheinstallation,useand maintenanceofdevicesforthedeterminationofconcentrationsofchemicalorbiologicalagentsinworkpl
24、ace atmospheres. ThisEuropeanStandardisbasedontheguidancegiveninEN689andtherequirementsofEN482. Whereappropriate,thisEuropeanStandardspecifiesadditionalrequirementsspecifictoparticularproceduresor devices,orclassesthereof. Itistheusersprimaryresponsibilitytochooseappropriateproceduresordevicesthatme
25、ettherequirementsof relevantEuropeanStandards.Onewayofdoingthisistoobtaininformationorconfirmationfromthemanufacturer. Typetesting,ormoregenerally,theassessmentofperformancecriteriaofproceduresordevices,canbe undertakenbythemanufacturer,user,testhouseorresearchanddevelopmentlaboratory,asismostapprop
26、riate. AlthoughthisStandardspecificallyaddressesworkplaceair,manyoftheproceduresordevicesarealsorelevantto theassessmentofairqualityinambientorindoorair. Specificguidesexistforelectricalapparatususedforthedirectdetectionanddirectconcentrationmeasurementof toxicgasesandvapoursinworkplaceatmospheres(E
27、N455444)andfordiffusivesamplersforthedetermination ofgasesandvapoursinambientair(prEN135283). 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedher
28、eafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN482:1994,WorkplaceatmospheresGeneralrequirement
29、sfortheperformanceofproceduresforthe measurementofchemicalagents. EN689, Workplaceatmospheres Guidancefortheassessmentofexposurebyinhalationtochemicalagentsfor comparisonwithlimitvaluesandmeasurementstrategy. EN838:1995,Workplaceatmospheres Diffusivesamplersforthedeterminationofgasesandvapours Requi
30、rementsandtestmethods. EN1076:1997, WorkplaceatmospheresPumpedsorbenttubesforthedeterminationofgasesandvapours Requirementsandtestmethods. EN1231:1996, Workplaceatmospheres Shorttermdetectortubemeasurementsystems Requirementsand testmethods . EN1232, WorkplaceatmospheresPumpsforpersonalsamplingofche
31、micalagentsR equirementsandtest methods.EN14042:2003(E) 6 EN12919, WorkplaceatmospheresPumpsforsamplingofchemicalagentswithavolumeflowrateofover 5l/minRequirementsandtestmethods. EN13098, Workplaceatmospheres Guidelinesformeasurementofairbornemicroorganismsandendotoxin. EN13205, Workplaceatmospheres
32、 Assessmentofperformanceofinstrumentsformeasurementofairborne particleconcentrations. prEN135283, Ambientairquality Diffusivesamplersforthedeterminationofconcentrationofgasesand vapoursPart3:Guidetoselection,useandmaintenance. EN13890, Workplaceatmospheres Proceduresformeasuringmetalsandmetalloidsin
33、airborneparticles Requirementsandtestmethods. ENV13936:2001, Workplaceatmospheres Measurementofchemicalagentspresentasmixturesofairborne particlesandvapourRequirementsandtestmethods. EN455444, WorkplaceatmospheresElectricalapparatususedforthedirectdetectionanddirectconcentration measurementoftoxicga
34、sesandvapoursPart4:Guideforselection,installation,useandmaintenance. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 accuracy closenessofagreementbetweenatestresultandtheacceptedreferencevalue ISO35341:1993 3.2 averagingtime periodoftimeforwhichth
35、emeasuringprocedureyieldsasinglevalue EN482:1994 3.3 bias consistentdeviationofthemeasuredvaluefromthevalueoftheairqualitycharacteristicitselfortheaccepted referencevalue ISO6879:1995 NOTE InthisEuropeanStandard“airqualitycharacteristic”meanstheconcentrationofthepollutantinworkplaceair. 3.4 biologic
36、alagent microorganisms,includingthosewhichhavebeengeneticallymodified,cellculturesandhumanendoparasites whichcancauseanyinfection,allergyortoxicityorotherwisecreatearisktohumanhealth EN1540:1998 3.5 chemicalagent anychemicalelementorcompound,onitsownoradmixedasitoccursinthenaturalstateorasproducedby
37、any workactivity,whetherornotitisproducedintentionallyandwhetherornotplacedonthemarket EN1540:1998EN14042:2003(E) 7 3.6 desorptionefficiency ratioofthemassofanalytedesorbedfromasamplingdevicetothatapplied EN838:1995 3.7 detectortubemeasurementsystem completemeasurementsystemconsistingofadetectortube
38、andadetectortubepump EN1231:1996 3.8 diffusivesampler devicewhichiscapableoftakingsamplesofgasesorvapoursfromtheatmosphereataratecontrolledbya physicalprocesssuchasgaseousdiffusionthroughastaticairlayeroraporousmaterialand/orpermeation throughamembrane,butwhichdoesnotinvolvetheactivemovementofairthr
39、oughthesampler NOTE1 AdaptedfromEN838:1995. NOTE2 Activenormallyreferstothepumpedmovementofair. 3.9 diffusiveuptakerate rateatwhichthediffusivesamplercollectsaparticulargasorvapourfromtheatmosphere,expressedin nanogramsperpartspermillion 1 )perminute(ngppm 1 min 1 )orcubiccentimetresperminute(cm 3 m
40、in 1 ) EN838:1995 3.10 inhalablefraction massfractionoftotalairborneparticleswhichisinhaledthroughthenoseandmouth EN481:1993 3.11 lengthofstaindetectortube(inthefollowingcalled“detectortube”) glasstubecontainingchemicalreagentsinwhichacolourchangecanbeproducedwhenasampleofthe atmosphereisdrawnthroug
41、hit NOTE Thelengthofstain,relativetoagraduatedscale,providesameasureoftheconcentrationofthespecifiedchemical agentinair. 3.12 limitvalue(LV) referencefigurefortheconcentrationofachemicalorbiologicalagentinair EN1540:1998 3.13 measuringprocedure procedureforsamplingandanalysingoneormorechemicalorbiol
42、ogicalagentsintheairandincludingstorage andtransportationofthesample EN1540:1998 1 )ppmisvolumefraction,( f )=10 6 .EN14042:2003(E) 8 3.14 overalluncertainty(OU)(ofameasuringprocedureorofaninstrument) quantityusedtocharacteriseasawholetheuncertaintyoftheresultgivenbyanapparatusorameasuring procedure
43、Itisexpressed,asapercentage,byacombinationofbiasandprecisionusuallyaccordingtothe formula: ref ref x s x x 2 + - (1) where x isthemeanvalueofresultsofanumber( n)ofrepeatedmeasurements; x ref isthetrueoracceptedreferencevalueofconcentration; s isthestandarddeviationofmeasurements. EN1540:1998 3.15 p
44、article/vapourmixture aerosolconsistingofairborneparticlesandvapour ENV13936:2001 3.16 precision theclosenessofagreementbetweenindependenttestresultsobtainedunderstipulatedconditions ISO35341:1993 3.17 pumpedsampler devicewhichiscapableoftakingsamplesofgases,vapoursorparticulatesfromtheatmosphereandconsisting
