1、BRITISH STANDARD BS EN 174:2001 Personal eye-protection Ski goggles for downhill skiing The European Standard EN 174:2001 has the status of a British Standard ICS 13.340.20; 97.220.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 174:2001 This British Standard, having b
2、een prepared under the direction of the Health and Environment Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 BSI 06-2001 ISBN 0 580 37295 2 National foreword This British Standard is the official English language version of EN 17
3、4:2001. It supersedes BS EN 174:1997 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/2, Eye protection, to Subcommittee PH/2/1, Sunglasses, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on
4、 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 Correspondence Index”, or by using the “Find” facility
5、 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 itself confer immunity from legal obligation
6、s. 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 them in the UK. Summary of pages This docume
7、nt comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, 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. No. Date CommentsEUROPEANSTANDARD NORMEE
8、UROPENNE EUROPISCHENORM EN174 April2001 ICS13.340.20 SupersedesEN174:1996 Englishversion PersonaleyeprotectionSkigogglesfordownhillskiing ProtectionindividuelledeloeilMasquespourleskialpin PersnlicherAugenschutzSkibrillenfralpinenSkilauf ThisEuropeanStandardwasapprovedbyCENon19February2001. CENmembe
9、rsareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember.
10、 ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium
11、,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001
12、CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN174:2001EPage2 EN174:2001 Contents Page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Requirementsfordesignandmanufacture . .4 4.1 Generalrequirements 4 4.2 Materials4 4.3 Sit
13、andfit. 4 4.4 Ventilation.5 5 Otherrequirements 5 5.1 Opticalrequirements .5 5.1.1 Fieldofvision. 5 5.1.2 Lensrequirements. 5 5.2 Mechanicalstrength . .7 5.3 Protectionagainstwaterandsnow . 7 5.4 Resistancetoignition 7 5.5 Suitabilityforcleaningandcare. 7 5.6 Optionalspecifications . 8 5.6.1 Resista
14、ncetosurfacedamagebyfineparticles .8 5.6.2 Resistancetofoggingofoculars .8 5.6.3 Enhancedinfraredabsorptionofoculars . 8 6 Testing 8 6.1 Generalremarks. 8 6.2 Fieldofvision. 9 6.3 Reducedluminancecoefficient. .11 6.4 Resistancetoultravioletradiation . 11 6.5 Mechanicalstrength . .11 6.5.1 Apparatus
15、.11 6.5.2 Procedure .12 7 Informationsuppliedbythemanufacturers. .13 AnnexA(informative)Uncertaintyofmeasurementandresultsinterpretation 14 A.1 Testreportanduncertaintyofmeasurement .14 AnnexZA(informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsorother provisionsofEUdirectives.
16、 17 Bibliography 18Page3 EN174:2001 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC85,“personaleyeprotection“the secretariatofwhichisheldbyAFNOR. ThisEuropeanStandardreplacesEN174:1996. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentic
17、altextor byendorsement,atthelatestbyOctober2001,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2001. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). Forrelationshipwith
18、EUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland
19、,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom.Page4 EN174:2001 1Scope ThisEuropeanStandardisapplicabletoskigoggleswhichareusedforeyeprotectionduringdownhillskiingand otherdownhillactivities,likesnowboard. ForsnowmobileuseEN13178applies. 2 Normativereferen
20、ces ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standard
21、onlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN165, PersonaleyeprotectionVocabulary. EN167:2001 1 ) , PersonaleyeprotectionOpticaltestmethods. EN168:2001 1 ) , PersonaleyeprotectionNonopticaltestmethods. EN
22、1836:1997, PersonaleyeprotectionSunglassesandsunglarefiltersforgeneraluse. EN13178, PersonaleyeprotectionEyeprotectorsforsnowmobileusers 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsofEN165andofEN1836:1997apply. 4 Requirementsfordesignandmanufacture 4.1Generalrequ
23、irements Skigogglesshallbefreefromsharpedgesorotherdefectswhicharelikelytocausediscomfortorinjuryduring intendeduse.Thisischeckedbyvisualinspection. 4.2Materials Nopartsoftheskigogglewhichareincontactwiththewearershallbemadeofmaterialsthatareknowntocause irritation,allergicortoxicreactioninanormalst
24、ateofhealthamongstasignificantproportionofusers. Thisischeckedbytheinspectionoftheinformationsuppliedbythemanufacturer. NOTE Rareoridiosyncraticreactiontoanymaterialmayoccurandmayindicatetheneedfortheindividualtoavoid particulartypesofmaterial.Adverseskinreactionmaybeduetoothercauses,e.g.excessiveco
25、ntactpressure. 4.3Sitandfit Skigogglesshallsitreliablywhenusedasintendedandadaptedtothecontoursoftheface.Thesurfacesin contactwiththefaceshallbemadeofsoftflexiblematerial.Theheadstrapshallbedesignedtobeflexibleor adjustableandsitsecurelyonthebackoftheheadorthehelmet.Theheadstrapassemblyshallwithstan
26、dany stresswhichoccursduringproperusewithouttearingorbeingpermanentlydeformed.Thisischeckedbyvisual inspection. 1 ) Tobepublished.Page5 EN174:2001 4.4Ventilation Designmeasuresshallensurethattheinsideoftheskigogglesiswellventilatedduringskiing. Thisischeckedbyvisualinspection. NOTE Thenecessaryrateo
27、fairexchangeandthedesignoftheventilationopeningsdependheavilyontheweather,style ofskiingandtheindividualconditions(e.g.sweating),whichmeansthatgenerallyapplicablerequirementscannotbestipulate d. 5 Otherrequirements 5.1Opticalrequirements 5.1.1 Fieldofvision Thesizeofthefieldofvisionisdefinedinconjun
28、ctionwiththeheadformasgiveninclause17ofEN168:2001. SkigogglesshallexhibitaminimumfieldofvisiondefinedbythetwoellipsesinFigure1whenplacedandcentered atadistanceof25mmfromthesurfaceoftheeyesoftheheadform.Thehorizontalaxisshallbeparalleltoand 0,7mmbelowtheheightofthelineconnectingthecentresofthetwoeyes
29、.Theplaneoftheellipsesshallbe paralleltothebackflatportionoftheheadform. Thehorizontallengthoftheellipsesshallbeof32mm,theverticalwidthoftheellipsesshallbeof25mm.The centredistanceofthetwoellipsesshallbe d= c +20mm,where cisthepupillarydistance.Thepupillarydistance is64mm,ifnotspecifieddifferentlyby
30、themanufacturer. Thetestshallbecarriedoutinaccordancewith6.2. Dimensionsinmillimetres Figure1Definitionofthefieldofvision 5.1.2 Lensrequirements ThelensrequirementsaresummarisedinTables1and2.Page6 EN174:2001 Table1Requirementsforlensesusedinskigogglesfordownhillskiing Opticalpower Inaccordancewith4.
31、2ofEN1836:1997 Transmittance InaccordancewithTable2and6.1ofEN1836:1997 Variationsinluminoustransmittance Inaccordancewith4.1.2.1ofEN1836:1997 Diffusionoflightclass11,0 cd m lx / 2 inaccordancewith 6.3 Maximumreducedluminancecoefficient Diffusionoflightclass22,0 cd m lx / 2 inaccordancewith 6.3 Quali
32、tyofmaterialandsurface Inaccordancewith4.4ofEN1836:1997 a)Maximumrelativechan geintheluminous transmittanceinaccordancewith6.4 5%forfiltersofcategoryS0 10%forfiltersofcategoryS1 20%forfiltersofallothercategories b)Maximumreducedluminancecoefficientinaccordance with6.4 Diffusionoflightclass1 1,0 cd m
33、 lx / 2 Resistancetoultravioletradiation Diffusionoflightclass2 2,0 cd m lx / 2 Table2Permissibletransmittanceoflensesfordownhillskiing Requirements Optional specifications Ultravioletspectralrange Visiblespectralrange Enhanced infrared absorption Maximumvalueofspectral transmittance Maximum valueof
34、solar UVAtransmit tance Rangeofluminous transmittance Maximumvalue ofsolarinfrared transmittance ( ) SUVA V SIR Filter category 280nmto 315nm over315nm to350nm 315nmto 380nm fromover % to % S0 80,0 100 S1 43,0 80,0 S2 0,3. V 0,3. V 18,0 43,0 S3 8,00 18,0 S4 0,03. V 0,15. V 0,15. V 3,00 8,00 VPage7 E
35、N174:2001 Ifspecialtransmittancepropertiesareclaimed,EN1836:1997applies. 5.2Mechanicalstrength Theskigoggleshallwithstandtheimpactofasteelballwhentestedinaccordancewith6.5. Onsotesting,thefollowingdefectsshallnotoccur: a) ocularfracture: Anocularshallbeconsideredtohavefracturedifitcracksthroughitsen
36、tirethicknessintotwoormore pieces,oriftheballpassesthroughtheocular; b) oculardeformation: Anocularshallbeconsideredtohavebeendeformedifamarkappearsonthewhitepaperonthe oppositesidetothatstruckbytheball; c) ocularhousingorframefracture: Anocularhousingshallbeconsideredtohavefailedifitseparatesintotw
37、oormorepieces,orifitisno longercapableofholdinganocularinposition,orifanunbrokenocularbecomesdetachedfromthe frame,oriftheballpassesthroughthehousingorframe. 5.3Protectionagainstwaterandsnow Theskigoggleshallbedesignedsothatnosnoworwatercanpenetratetheskigoggle. Theresultshallbeconsideredtobesatisfa
38、ctoryifnoliquidenterstheinsideoftheskigoggleduring thetestinaccordancewithclause12ofEN168:2001whensprayingfromthefrontonlyindirections perpendiculartotheflatportionatthebackoftheheadform. 5.4Resistancetoignition Skigogglesshallbetestedinaccordancewiththemethodspecifiedinclause7ofEN168:2001and shallb
39、econsideredtobesatisfactoryifnopartoftheskigoggleignitesorcontinuestoglowafter removalofthesteelrod. 5.5Suitabilityforcleaningandcare Allpartsoftheskigoggleshallbecapableorwithstanding,withoutvisiblechange,cleaningin accordancewithmanufacturersrecommendedmethods.Page8 EN174:2001 5.6Optionalspecifica
40、tions 5.6.1 Resistancetosurfacedamagebyfineparticles Ifocularsareclaimedtoberesistanttosurfacedamagebyfineparticlestheyshallhaveareduced luminancecoefficientof: 50 2 , / cd m lx insurfacedamagebyfineparticlesclass1 10 0 2 , / cd m lx insurfacedamagebyfineparticlesclass2 followingthetestspecifiedincl
41、ause15ofEN168:2001. 5.6.2 Resistancetofoggingofoculars Ifocularsareclaimedtoberesistanttofoggingtheyshallremainfreefromfoggingforaminimumof 30swhentestedinaccordancewithclause16ofEN168:2001. NOTE Resistancetofogginginuseisafunctionoftheantifogpropertiesoftheocularandthedesignofthe skigoggle. 5.6.3 E
42、nhancedinfraredabsorptionofoculars Ifocularsareclaimedtohaveenhancedinfraredabsorption,theyshallcomplywiththerequirements ofthelastcolumnofTable2. 6Testing Thisclausecontainsrecommendedtestmethods.Anymethodshowntobeequivalentmaybeused instead. 6.1Generalremarks ThetestingscheduleinTable3shallbeappli
43、edtotypetestingofcompleteskigoggles.Thesequence oftesting1to10maybechanged.Atleast9samplesarerequiredfortesting.Ifadditionallytestingfor optionalrequirementshastobedone,morethan13samplesmaybenecessary.Page9 EN174:2001 Table3Testingscheduleforcompleteskigoggles Skigogglenumber Orderof testing Requirement According toclause 13 46 79 1011 1213 1 Generalrequirements 4.1 + 2 Qualityofmaterialandsurface 4.2;5.1.2 + 3 Fieldofvision 5.1.1 + 4 Ventilation 4.4 + 5 Sitandfit 4.3 + 6 Scatteredlight 5.1.2 +1) 7 Transmittance,uniformit yof luminoustransmittan
