1、BRITISH STANDARD BS EN 170:2002 Personal eye-protection Ultraviolet filters Transmittance requirements and recommended use The European Standard EN 170:2002 has the status of a British Standard ICS 13.340.20 BS EN 170:2002 This British Standard was published under the authority of the Standards Poli
2、cy and Strategy Committee on 14 April 2003 BSI 14 April 2003 ISBN 0 580 41603 8 National foreword This British Standard is the official English language version of EN 170:2002. It supersedes BS EN 170:1992 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committ
3、ee PH/2, Eye protection, to Subcommittee PH/2/4, Welding, ultraviolet and infrared filters, 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 E
4、uropean 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 British Standards Online. This publication does not purport to includ
5、e 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; present to the responsible international/European committee any enquiri
6、es 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 inside front cover, the EN title page, pages 2 to 13 and a back cov
7、er. 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 EN170 October2002 ICS13.340.20 SupersedesEN170:1992 Englishversion PersonaleyeprotectionUltravio
8、letfiltersTransmittance requirementsandrecommendeduse ProtectionindividuelledeloeilFiltrespourlultraviolet Exigencesrelativesaufacteurdetransmissionetutilisation recommande PersnlicherAugenschutzUltraviolettschutzfilter TransmissionsanforderungenundempfohleneAnwendung ThisEuropeanStandardwasapproved
9、byCENon12September2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheM
10、anagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenational
11、standardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCen
12、tre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN170:2002EEN170:2002(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Designationandidentification 4 5 Requirements .4 5.1
13、 General4 5.2 Transmittancerequirements .4 5.3 Ocularwithenhancedcolourrecognition(optional) .5 AnnexA (normative) Relativevisualattenuationquotientforsignallightrecognition.6 AnnexB (informative) Guidanceonselectionanduse .8 AnnexC (informative) Uncertaintyofmeasurementandresultsinterpretation.10 A
14、nnexZA (informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsorother provisionsofEUDirectives 12 Bibliography 13EN170:2002(E) 3 Foreword Thisdocument(EN170:2002)hasbeenpreparedbyTechnicalCommitteeCEN /TC 85,“Eyeprotective equipment“,thesecretariatofwhichisheldbyAFNOR. ThisEuropea
15、nStandard shallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyApril2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby April2003. ThisdocumentsupersedesEN170:1992. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanComm
16、issionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). ForrelationshipwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. InthisEuropeanStandard,AnnexAisnormativeandAnnexesBandCareinformative. AccordingtotheCEN/CENELECInternalRegulations
17、,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom.EN170:2002(E) 4 1Scop
18、e ThisEuropeanStandardspecifiesthescalenumbersandtransmittancerequirementsforfiltersforprotection againstultravioletradiation. Theotherapplicablerequirementsforthesetypesoffiltersandtheframes/mountingstowhichtheyareintendedto befittedaregiveninEN166. Guidanceontheselectionanduseofthesefiltersaregive
19、ninannexB. NOTE Theprotectivefiltersspecifiedinthisstandardarenotsuitableforthedirectviewingofbrightlightsourceslike Xenonhighpressurearclampsorforthedirectorindirectobservationofanelectricweldingarc.Forthispurposeawelding filterasspecifiedinEN169andwithascalenumberappropriatetothesourcebeingobserve
20、dshouldbyused. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublica
21、tionsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN165:1995, PersonaleyeprotectionVocabulary . EN166, PersonaleyeprotectionSpecifications . EN167, PersonaleyeprotectionOpticalte
22、stmethods . ISO/CIE10526:1999, CIEStandardilluminantsforcolorimetry . ISO/CIE10527:1991, CIEStandardcolorimetricobservers . 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN165:1995apply. 4 Designationandidentification Thecompletetableofnumberingoffiltersisgi
23、veninEN166. ThemarkingofocularsandframeisdescribedinEN166. Thescalenumberofultravioletfilterscomprisesthecodenumber2andtheshadenumbercorrespondingtothe filter,from1,2to5(seeTable1). 5Requirements 5.1General TherequirementsofEN166applytoultravioletfilters.Onlythoserequirementsthataredifferentfromor s
24、upplementtheEN166specificationsaregiveninthisEuropeanstandard. 5.2 Transmittancerequirements ThedefinitionsoftransmittancesaregiveninEN165.EN170:2002(E) 5 ThedeterminationofluminoustransmittanceisdescribedinEN167. Thetransmittancerequirementsforfiltersusedforprotectionagainstultravioletradiationareg
25、iveninTable1. Table1Transmittancerequirements Maximumspectral transmittanceinthe ultraviolet t (l ) Luminoustransmittance t v Transmittanceinthe infraredspectralrange Scale number 313nm % 365nm % maximum % minimum % 21,2 0,0003 10 100 74,4 21,4 0,0003 9 74,4 58,1 21,7 0,0003 7 58,1 43,2 22 0,0003 5
26、43,2 29,1 nospecification 22,5 0,0003 3 29,1 17,8 23 0,0003 2 17,8 8,5 24 0,0003 0,8 8,5 3,2 25 0,0003 0,3 3,2 1,2 Minimumandmaximumvaluesofluminoustransmittancemaybeexceededbytakingintoaccountthelimitsof relativeuncertaintygiveninEN167. Additionalrequirements: a) for210nm l 313nmthespectraltransmit
27、tanceshallnotexceedthevaluespecifiedfor313nm; b) for313nm l 365nmthespectraltransmittanceshallnotexceedthevaluespecifiedfor365nm; c) for365nm l 405nmthespectraltransmittanceshallnotexceedtheluminoustransmittance; NOTE LuminoustransmittancevaluesarebasedonthespectraldistributionofCIEilluminantAandont
28、heCIE(1931) standardobserver(2)(seeISO/CIE10526:1999andISO/CIE10527:1991). 5.3 Ocularwithenhancedcolourrecognition(optional) Between500nmand650nmthespectraltransmittanceshallbenotlessthan0,2 t v . Therelativevisualattenuationquotient Q,forsignallightsred,yellow,greenandblueshallbenotlessthan0,8.EN17
29、0:2002(E) 6 Annex A (normative) Relativevisualattenuationquotientforsignallightrecognition A.1 Definitionofrelativevisualattenuationquotientforsignallightrecognition Thisquotient Qisdefinedas: Q= v sign t t where t v istheluminoustransmittanceofthefilterforCIEstandardilluminantD65.SeeISO/CIE10526:19
30、99 t sign istheluminoustransmittanceofthefilterforthespectralpowerdistributionofthetrafficsignallight. Thesearegivenbytheequations: () () () () () l l l l l l l t t l l d S V d S V F v = 5 D6 nm 780 nm 380 D65 nm 780 nm 380 () () () () () () () l l l l t l l l l t l t t l l d S V d S V s s F sign =
31、A nm 780 nm 380 A nm 780 nm 380 where S Al (l ) isthespectraldistributionofradiationofCIEstandardilluminant A(or3200Klightsourcefor bluesignallight).See:ISO/CIE10526:1999 S D65l (l ) isthespectraldistributionofradiationofCIEstandardilluminantD65.SeeISO/CIE10526:1999 V(l ) isthespectralluminouseffici
32、encyfordaylightvision.SeeISO/CIE10527:1991 t S (l ) isthespectraltransmittanceofthetrafficsignallens; t F (l ) isthespectraltransmittanceofthefilter. Thespectralvaluesoftheproductsofthespectraldistributions( S Al (l ), S D65l (l ),oftheilluminants,thespectral luminousefficiency V(l )oftheeyeandthesp
33、ectraltransmittance t (l )ofthetrafficsignallensesaregiveninA.2.EN170:2002(E) 7 A.2 Spectralfunctionsforthecalculationofluminoustransmittanceandrelativevisual attenuationquotients TableA.1:ProductofthespectraldistributionofradiationofthesignallightsandstandardilluminantD65 asspecifiedinISO/CIE10526:
34、1999andthespectralluminousefficiencyoftheaveragehumaneyefor daylightvisionasspecifiedinISO/CIE10527:1991 Wavelength ll S A(ll ) V(ll ) tt S(ll)S D65(ll ) V(ll ) nm red yellow green blue a 380 0 0 0 0,0001 0 390 0 0 0 0,0008 0,0005 400 0 0 0,0014 0,0042 0,0031 410 0 0 0,0047 0,0194 0,0104 420 0 0 0,0
35、171 0,0887 0,0354 430 0 0 0,0569 0,3528 0,0952 440 0 0 0,1284 0,8671 0,2283 450 0 0 0,2522 1,5961 0,4207 460 0 0 0,4852 2,6380 0,6688 470 0 0 0,9021 4,0405 0,9894 480 0 0 1,6718 5,9025 1,5245 490 0 0 2,9976 7,8862 2,1415 500 0 0 5,3553 10,1566 3,3438 510 0 0 9,0832 13,0560 5,1311 520 0 0,1817 13,018
36、0 12,8363 7,0412 530 0 0,9515 14,9085 9,6637 8,7851 540 0 3,2794 14,7624 7,2061 9,4248 550 0 7,5187 12,4687 5,7806 9,7922 560 0 10,7342 9,4061 3,2543 9,4156 570 0 12,0536 6,3281 1,3975 8,6754 580 0,4289 12,2634 3,8967 0,8489 7,8870 590 6,6289 11,6601 2,1640 1,0155 6,3540 600 18,2382 10,5217 1,1276 1
37、,0020 5,3740 610 20,3826 8,9654 0,6194 0,6396 4,2648 620 17,6544 7,2549 0,2965 0,3253 3,1619 630 13,2919 5,3532 0,0481 0,3358 2,0889 640 9,3843 3,7352 0 0,9695 1,3861 650 6,0698 2,4064 0 2,2454 0,8100 660 3,6464 1,4418 0 1,3599 0,4629 670 2,0058 0,7892 0 0,6308 0,2492 680 1,1149 0,4376 0 1,2166 0,12
38、60 690 0,5590 0,2191 0 1,1493 0,0541 700 0,2902 0,1137 0 0,7120 0,0278 710 0,1533 0,0601 0 0,3918 0,0148 720 0,0742 0,0290 0 0,2055 0,0058 730 0,0386 0,0152 0 0,1049 0,0033 740 0,0232 0,0089 0 0,0516 0,0014 750 0,0077 0,0030 0 0,0254 0,0006 760 0,0045 0,0017 0 0,0129 0,0004 770 0,0022 0,0009 0 0,006
39、5 0 780 0,0010 0,0004 0 0,0033 0 Sum 100 100 100 100 100 a Forblueflashinglightthespectraldistributionfor3200KisusedinsteadofstandardilluminantA.EN170:2002(E) 8 Annex B (informative) Guidanceonselectionanduse B.1 Forthepersonalprotectionoftheoperatorthefiltermustbemountedinasuitableeyeprotector.Eye
40、protectortypesaredescribedinEN166. B.2 Forprotectionagainstultravioletradiation,filtersshouldbeselectedfromthoseclassifiedinTableB.1. Thesefilterscanhaveayellowishtingewhichcanmodifycolourperception. B.3 Forprocessesinwhichcolourrecognitionisimportant,theuseofUVfilterswithenhancedcolourrecognition i
41、srecommended. B.4 FiltersaccordingtothisstandardarenotsuitablefordirectviewingofbrightlightsourceslikeXenonhigh pressurearclampsorweldingarcs.ForthispurposeweldingfilteraccordingtoEN169shouldbeused. B.5 TheguidelinesgiveninTableB.1(typicalapplications)arenotapplicabletopersonswithphotophobiaorto tho
42、seundermedicaltreatmentthatcanincreasethesensitivityoftheeyestoopticalradiation.EN170:2002(E) 9 TableB.1Designation,propertiesandtypicalapplications Scalenumber Colourperception Typicalapplications Typicalsources a 21,2 21,4 21,7 Maybeimpaired, unlessmarked2Cshade Forusewithsourceswhichemitpredomina
43、ntl yultraviolet radiationatwavelen gthsshorterthan313nmandwhen glareis notanimportantfactor.ThiscoverstheUVCandmostofthe UVBbands b . Lowpressuremercurylampssuchaslampsusedtostimulate fluorescenceor“blacklights”,actiniclampsandgermicidallamps. 22 22,5 Mediumpressuremercurylampssuchasphotochemicalla
44、mps. 23 24 Maybeimpaired, unlessmarked2Cshade ForusewithsourceswhichemitintenseradiationinboththeUV andvisiblespectralre gionsandthereforere quiretheattenuation ofvisibleradiation. Highpressuremercur ylampsandmetalhalidelampssuchassun lampsforsolaria. 25 Pulsedlamps ystems.Hi ghandver yhi ghpressuremercur ylamps suchassunlampsforsolaria. a Theexamplesgivenareforgeneralguidance. b ThewavelengthsofthesebandsareasrecommendedbyCIE(thatis,280nmto315nmforUVBand100n
