1、BRITISH STANDARD BS EN 169:2002 Personal eye-protection Filters for welding and related techniques Transmittance requirements and recommended use The European Standard EN 169:2002 has the status of a British Standard ICS 13.340.20 BS EN 169:2002 This British Standard, having been prepared under the
2、direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 26 November 2002 BSI 26 November 2002 ISBN 0 580 40829 9 National foreword This British Standard is the official English language version
3、of EN 169:2002. It supersedes BS EN 169:1992 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/2, Eye protection, to Subcommittee PH/2/4, Welding, ultra violet and infrared filters, which has the responsibility to: A list of organizations represented
4、 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 Catalogue under the section entitled “International Standards Correspondence Index”, o
5、r 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 provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer im
6、munity from legal obligations. aid enquirers to understand the text; present 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 th
7、em in the UK. Summary of pages This document comprises a front cover, an inside 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
8、 No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN169 November2002 ICS13.340.20 SupersedesEN169:1992 Englishversion PersonaleyeprotectionFiltersforweldingandrelated techniquesTransmittancerequirementsandrecommended use ProtectionindividuelledeloeilFiltrespourlesoudageet lestechniqu
9、esconnexesExigencesrelativesaufacteur detransmissionetutilisationrecommande PersnlicherAugenschutzFilterfrdasSchweienund verwandteTechnikenTransmissionsanforderungenund empfohleneAnwendung ThisEuropeanStandardwasapprovedbyCENon2October2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulat
10、ionswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(
11、English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greec
12、e, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanym
13、eansreserved worldwideforCENnationalMembers. Ref.No.EN169:2002EEN169:2002(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Designationandidentification 4 5 Requirements .5 5.1 General5 5.2 Transmittancerequirements .5 5.3 Ocularswithenhancedcolourrecognition
14、optional) . 6 5.4 Ocularswithenhancedreflectanceintheinfrared(optional) .6 5.5 Additionalrequirementsforweldingfilterswithdualscalenumber .6 5.5.1 Differenceinscalenumber .6 5.5.2 Transmittance.6 5.5.3 Dimensions.6 AnnexA (informative) Guidanceonselectionanduse .7 A.1 General7 A.1.1 Scalenumberstob
15、eusedforgasweldingandbrazewelding 7 A.1.2 Scalenumberstobeusedforoxygencutting. .8 A.1.3 Scalenumberstobeusedforplasmajetcutting. 8 A.1.4 Scalenumberstobeusedforelectricarcweldingorairarcgouging8 A.1.5 Scalenumbersoffilterstobeusedbyweldersassistants 10 A.1.6 Filterswithenhancedcolourrecognition .10
16、 A.1.7 Filterswithenhancedreflectanceintheinfrared. 10 A.2 Remarks10 AnnexB (normative) Relativevisualattenuationquotientforsignallightrecognition.11 B.1 Definitionofrelativevisualattenuationquotientforsignallightrecognition.11 B.2 Spectralfunctionsforthecalculationofluminoustransmittanceandrelative
17、visual attenuationquotients 12 AnnexC (informative) Uncertaintyofmeasurementandresultsinterpretation.13 C.1 Testreportanduncertaintyofmeasurement .13 AnnexZA(informative)ClausesofthisEuropeanStandardaddressingessentialrequirementsor otherprovisionsofEUDirectives 15 Bibliography 16EN169:2002(E) 3 For
18、eword Thisdocument(EN169:2002)hasbeenpreparedbyTechnicalCommitteeCEN/TC 85,“Eyeprotective equipment“,thesecretariatofwhichisheldbyAFNOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMay2003,andconflictingnationalstanda
19、rdsshallbewithdrawnatthelatestby May2003. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). ForrelationshipwithEUDirective(s),seeinformativeAnnexZA,whichisanintegralpartofthisdocument. Theann
20、exesAandCareinformative.AnnexBisnormative. IntherevisionofthisEuropeanStandard,andthatofEN379,whichwasperformedconcurrently,itwasdecidedto removefromEN379weldingfilterswithdualscalenumbersandincludethemwithinthisEuropeanStandard. ThisdocumentsupersedesEN169:1992. AccordingtotheCEN/CENELECInternalReg
21、ulations,thenationalstandardsorganizationsofthefollowing countriesareboundto:Austria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland, Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnited Kingdom.EN169:2002(E) 4 1Scope ThisEuropeanStandar
22、dspecifiesthescalenumbersandtransmittancerequirementsforfiltersintendedtoprotect operatorsperformingworkinvolvingwelding,brazewelding,airarcgougingandplasmajetcutting.Italsoincludes requirementsforweldingfilterswithdualscalenumbers. TheotherapplicablerequirementsforthesetypesoffiltersaregiveninEN166
23、Therequirementsforthe frames/mountingstowhichtheyareintendedtobefittedaregiveninEN175. GuidanceontheselectionanduseofthesefiltersaregiveninAnnexA. ThespecificationsforweldingfilterswithswitchableluminoustransmittancearegiveninEN379. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorund
24、atedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Fo
25、rundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN165, PersonaleyeprotectionVocabulary. EN166, PersonaleyeprotectionSpecifications. EN167:2001, PersonaleyeprotectionOpticaltestmethods. ISO/CIE10526:1999, CIEstandardilluminantsforcolorimetry. ISO/CIE10527:19
26、91, CIEstandardcolorimetricobservers. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN165andthefollowingapply. 3.1 weldingfilterwithdualscalenumber aprotectivefilterwithtwodifferentscalenumbers(lightanddarkzones)whicharedividedintoamaximumofthree areasofthef
27、ilter.Thelightzoneisusedforbriefviewingwhensettingtheelectrodetotheweldandignitingit.The darkzoneisusedforviewingtheweldingprocess 4 Designationandidentification ThecompletetableofnumberingoffiltersisgiveninEN166. ThemarkingofocularsandframeisdescribedinEN166. Thescalenumberofthesefilterscompriseson
28、lytheshadenumbercorrespondingtothefilter,from1,2to16 (seeTable1).EN169:2002(E) 5 5Requirements 5.1General TherequirementsofEN166applytoweldingfilters.Onlythoserequirementsthataredifferentfromorsupplement theEN166specificationsaregiveninthisEuropeanStandard. 5.2 Transmittancerequirements Thedefinitio
29、nsoftransmittancesaregiveninEN165. ThedeterminationofluminoustransmittanceisdescribedinEN167. ThetransmittancerequirementsforfiltersusedinweldingandrelatedtechniquesaregiveninTable1. Table1Transmittancerequirements Maximum spectraltransmittance intheultraviolet ( ) Luminous transmittance v Maximumme
30、an spectraltransmittance in theinfrared A Scalenumber 313nm % 365nm % Maximum % Minimum % 780nmto1400nm % 1,2 0,0003 50 100 74,4 69 1,4 0,0003 35 74,4 58,1 52 1,7 0,0003 22 58,1 43,2 40 2 0,0003 14 43,2 29,1 28 2,5 0,0003 6,4 29,1 17,8 15 3 0,0003 2,8 17,8 8,5 12 4 0,0003 0,95 8,5 3,2 6,4 5 0,0003 0
31、30 3,2 1,2 3,2 6 0,0003 0,10 1,2 0,44 1,7 7 0,0003 0,050 0,44 0,16 0,81 8 0,0003 0,025 0,16 0,061 0,43 9 0,0003 0,012 0,061 0,023 0,20 10 0,0003 0,006 0,023 0,0085 0,10 11 0,0003 0,0032 0,0085 0,0032 0,050 12 0,0003 0,0012 0,0032 0,0012 0,027 13 0,0003 0,00044 0,0012 0,00044 0,014 14 0,00016 0,0001
32、6 0,00044 0,00016 0,007 15 0,000061 0,000061 0,00016 0,000061 0,003 16 0,000023 0,000023 0,000061 0,000023 0,003 Minimumandmaximumvaluesofluminoustransmittancemaybeexceededbytakingintoaccountthelimitsof “relativeuncertainty”giveninEN167.EN169:2002(E) 6 Additionalrequirements: a) for210nm 313nm,thesp
33、ectraltransmittanceshallnotexceedthevaluepermittedfor313nm; b) for313nm 365nm,thespectraltransmittanceshallnotexceedthevaluepermittedfor365nm; c) for365nm 380nm,thespectraltransmittanceshallnotexceedtheluminoustransmittance v ; d) for380nm 480nm,thespectraltransmittanceshallnotexceedthevalueobserved
34、at480nm. NOTE1 LuminoustransmittancevaluesarebasedonthespectraldistributionofilluminantAandontheCIE(1931)standard observer(2)(seeISO/CIE10526:1999andISO/CIE10527:1991). NOTE2 TheIRtransmittancevaluesaredeterminedbyintegrationofthespectraldata. 5.3 Ocularswithenhancedcolourrecognition(optional) Betwe
35、en500nmand650nm,thespectraltransmittanceshallbenotlessthan0,2 v . TherelativevisualattenuationquotientQ,forsignallightsred,yellow,greenandblueshallbenotlessthan0,8. 5.4 Ocularswithenhancedreflectanceintheinfrared(optional) Ocularswhichareclaimedtohaveenhancedreflectanceintheinfraredshallhaveameanspe
36、ctralreflectance greaterthan60%withinthewavelengthrange780nmto2000nmwhenmeasuredinaccordancewith EN167:2001,clause8. 5.5 Additionalrequirementsforweldingfilterswithdualscalenumber 5.5.1 Differenceinscalenumber Thedifferenceinscalenumberbetweenthelightanddarkzonesshallbenomorethanfive. 5.5.2Transmitt
37、ance 5.5.2.1 Therequirementsof5.5.2.2and5.5.2.3shallbesatisfiedwhenthetransmittancesaremeasuredin accordancewithEN167. 5.5.2.2 Theminimumluminoustransmittanceinthelightzoneshallbe0,16%. 5.5.2.3 ThespectraltransmittanceintheultravioletandthemeantransmittanceintheinfraredgiveninTable1 andtheadditional
38、requirementsa)tod)in5.2requiredforthedarkzoneshallalsoapplytothelightzone. 5.5.3Dimensions Thedarkzoneshallbeatleast25mmverticaldepthacrossthehorizontallength. Anyregionseparatingthelightanddarkzonesshallnotexceed2mmverticaldepthacrossthehorizontallength. Thisregionshallprovideatleastthesameprotecti
39、onagainstradiationasthedarkzone.EN169:2002(E) 7 Annex A (informative) Guidanceonselectionanduse A.1General Forthepersonalprotectionoftheoperatorthefiltermustbemountedinasuitableeyeprotector.Eyeprotector typesaredescribedinEN175. Manyfactorsareinvolvedinselectingthescalenumberofaprotectivefilterwhich
40、issuitableforweldingorrelated techniques. Forgasweldingandrelatedtechniques ,suchasbrazewelding,thisEuropeanstandardreferstotheflow ratethroughtheburners; Forarcwelding,airarcgouging,andplasmajetcutting ,thecurrentisanessentialfactorinmakingan accuratechoicepossible. Inaddition,forarcwelding,thetype
41、ofarcandthetypeofparentmetalarealsotobetakenintoconsideration. Otherparametershaveasignificantinfluence,butitisdifficulttoevaluatetheireffect.Theseare,inparticular: thepositionoftheoperatorinrelationtotheflameorthearc.Forexample,dependingonwhethertheoperator leansoverhisworkoradoptsanarmslengthposit
42、ion,avariationofatleastonescalenumbercanbe necessary; local lighting; thehumanfactor. Forthesevariousreasons,thisEuropeanStandardonlygivesthosescalenumberswhichconfirmedpractical experiencehasshowntobevalidinnormalcircumstancesforthepersonalprotectionofoperatorswithnormal sight,carryingoutworkofaspe
43、cifiedtype. Thescalenumberofthefiltertobeusedcanbereadfromthetables,attheintersectionofthecolumn, correspondingtothegasflowrateorthecurrent,andtheline,specifyingtheworktobecarriedout. TheTablesA.1toA.3arevalidforaverageworkingconditions,inwhichthedistancefromthewelderseyetothe poolofmoltenmetalisapproximately50cmandtheaverageilluminanceisapproximately100lx. A.1.1 Scalenumberstobeusedforgasweldingandbrazewelding ThescalenumberstobeusedforgasweldingandbrazeweldingaregiveninTableA.1.EN169:2002(E) 8 TableA.1Scalenumbers a tobeusedforgasweldingandbrazewelding Work q
