1、BRITISH STANDARD BS EN 168:2002 Personal eye-protection Non-optical test methods The European Standard EN 168:2001 has the status of a British Standard ICS 13.340.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 168:2002 This British Standard, having been prepared under
2、 the direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 28 January 2002 BSI 28 January 2002 ISBN 0 580 38914 6 National foreword This British Standard is the official English language versi
3、on of EN 168:2001. It supersedes BS EN 168:1995 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/2, Eye protection, to Subcommittee PH/2/2, Industrial eye protectors, which has the responsibility to: A list of organizations represented on this subco
4、mmittee 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 Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by
5、 using the “Find” facility 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 immu
6、nity from legal obligations. 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. Su
7、mmary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 32, 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 Comme
8、ntsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN168 November2001 ICS13.340.20 SupersedesEN168:1995 Englishversion PersonaleyeprotectionNonopticaltestmethods ProtectionindividuelledeloeilMthodesdessaisautres quoptiques PersnlicherAugenschutzNichtoptischePrfverfahren ThisEuropeanStandardwasapprove
9、dbyCENon2September2001. 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,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ru
12、edeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN168:2001EEN168:2001(E) 2 Contents page Foreword4 1 Scope 5 2 Normativereferences 5 3 Testforincreasedrobustness. .5 3.1 Unmountedoculars . 5 3.1.1 Apparatus .5 3.1.2 Pro
13、cedure .6 3.2 Completeeyeprotectorsandframes 6 3.2.1 Apparatus .6 3.2.2 Procedure .7 3.2.3 Pointsofimpact .7 4 Testforminimumrobustnessofocularswithfilteringeffectandcoverplates .8 4.1 Apparatus .8 4.1.1 Loadingdevice .8 4.1.2 Specimensupport 8 4.2 Procedure .8 5 Testforstabilityatelevatedtemperatur
14、e 9 5.1 Apparatus .9 5.2 Procedure .9 6 Testforresistancetoultravioletradiation 10 6.1 Apparatus .10 6.2 Procedure .10 7 Testforresistancetoignition. 10 7.1 Apparatus .10 7.2 Procedure .10 8 Testforresistancetocorrosion .10 9 Testforresistancetohighspeedparticlesandresistancetohighspeedparticlesatex
15、tremes oftemperature. .11 9.1 Apparatus .11 9.1.1 Headform . 11 9.1.2 Propulsionequipment .11 9.2 Procedure .11 9.2.1 Resistancetohighspeedparticles 11 9.2.2 Resistancetohighspeedparticlesatextremesoftemperature 1 2 10 Testforprotectionagainstmoltenmetals 12 10.1 Testfornonadherenceofmoltenmetals .1
16、2 10.1.1 Principle12 10.1.2 Apparatus .12 10.1.3 Procedure .13 10.2 Testforareaofcoverageoffaceshields 14 10.2.1 Principle14 10.2.2 Apparatus .14 10.2.3 Procedure .14 10.2.4 Evaluation.14 11 Testforresistancetopenetrationbyhotsolids. 15 11.1 Apparatus .15 11.2 Procedure .16 12 Testforprotectionagain
17、stdropletsandliquidsplashes. .16 12.1 Testforprotectionagainstdroplets(forgoggletypeeyeprotectors).16 12.1.1 Apparatus .16EN168:2001(E) 3 12.1.2 Procedure .16 12.1.3 Evaluation.17 12.2 Testforprotectionagainstliquidsplashes(forfaceshields) . .17 13 Testforprotectionagainstlargedustparticles . 17 13.
18、1 Apparatus .17 13.2 Procedure .18 13.3 Evaluation.18 14 Testforprotectionagainstgasesandfinedustparticles .19 14.1 Apparatus .19 14.2 Procedure .20 14.3 Evaluation.20 15 Testforresistancetosurfacedamagebyfineparticles .20 15.1 Apparatus .20 15.1.1 Fallingsandapparatus. .20 15.1.2 Sand 20 15.1.3 Mea
19、suringapparatus .20 15.1.4 Referencesamples 20 15.2 Samples 20 15.3 Procedure .21 15.4 Evaluation.21 16 Testforresistancetofoggingofoculars 23 16.1 Apparatus .23 16.2 Samples 24 16.3 Procedureandevaluation. 24 17 Headform .25 18 AssessmentofFieldofVision 28 19 Assessmentoflateralprotection. 29 19.1
20、Apparatus .29 19.2 Procedure .29 19.3 Evaluation.29 AnnexA (informative) Uncertaintyofmeasurementandresultsinterpretation.30 A.1 Testreportanduncertaintyofmeasurement .30 AnnexZA (informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsorother provisionsofEUDirectives 32EN168:2001(E
21、) 4 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC85,“Eyeprotectiveequipment“,the secretariatofwhichisheldbyAFNOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMay2002,andconflictingnationalstan
22、dardsshallbewithdrawnatthelatestby May2002. ThisdocumentreplacesEN168:1995. ThisEuropeanStandardhasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandthe EuropeanFreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). ForrelationshipwithEUDirective(s),seeinformativeannexZA,w
23、hichisanintegralpartofthisstandard. TheannexesAandZAareinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy
24、,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom.EN168:2001(E) 5 1Scope ThisEuropeanStandardspecifiesnonopticaltestmethodsforeyeprotectors,therequirementsforwhichare containedinotherEuropeanStandards. Alternativetestmethodsmaybeusedifshowntobeequivalent. Theoptica
25、ltestmethodsaregiveninEN167. AdefinitionoftermsisgiveninEN165. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,sub
26、sequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN165, PersonaleyeprotectionVocabulary. EN166, PersonaleyeprotectionSpecificati
27、ons. EN167, PersonaleyeprotectionOpticaltestmethods. ISO565,TestsievesMetalwirecloth,perforatedmetalplateandelectroformedsheetNominalsizesof openings. 3 Testforincreasedrobustness Newspecimensshallbeusedforthistest. 3.1Unmounted oculars 3.1.1Apparatus Thesupportfortheocular(seeFigure1)shallbeasteelo
28、rrigidplasticcylinderwithaninternaldiameterof (35,00,1)mmandanoutsidediameterof(41,00,1)mm.Thecylindershallbeinsertedinto,orbeanintegral partofasteelbase.Theocularshallbecushionedbyasiliconeseatingringfirmlyattachedtothetopofthetube. Thisseatingringshallbemadeofsiliconerubberof(405)I.R.H.Dandshallha
29、veaninsidediameterof (35,00,4)mandcrosssectionsof3mmx3mmnominaldimensions. Thecombinedmassofthesupportshallbeatleast12kg. Aloadringofmass(2505)gisplacedontheocular.Theringhasaninsidediameterthesameasthatofthe supporttube,andanyconvenientoutsidediameter.Asiliconeseatingringhavingthesamedimensionsand
30、hardnessastheoneattachedtothetopofthesupporttubeisplacedbetweentheloadringandtheocular.Apiece ofcarbonpaperonapieceofwhitepaperisplacedatthebaseofthe1,5mmdeepcavityintheocularsupport (seeFigure1). Forcurvedocularswithacylindricalcomponent,thetestsupporttubeandloadringshallbecurvedtoconformto theconc
31、aveandconvexsurfacesoftheocularrespectively,andthedimensionsof3mmand4,5mmshallapplyto thedeepestpointofthecircularsupport.(SeeFigure1). Iftheocularisofinsufficientdimensionstoenableitsentireperipherytobeadequatelysupported,suitableadaptor sleevesshallbeused.EN168:2001(E) 6 3.1.2Procedure Centrethein
32、tendedpointsofimpactoftheocularonthesupporttube.Adjusttheapparatussothata22mm nominaldiametersteelballof43gminimummassfallingfrom( 0 03 , 0 3 , 1 )mstrikestheocularwithina5mmradius fromthecentreofthesupporttube.Thisheightwillprovideanimpactspeedofapproximately5,1m/s. Impactsshallbedirectedatthevisua
33、lcentre(s)oftheoculars.Forunmountedocularscoveringoneeyeandfor whichthevisualcentrecannotbeestablished,thenthegeometriccentreshallbeused. NOTE VisualcentreisasdefinedinEN166. Theimpactsarecarriedoutinthefollowingconditions: a) withtheocularheatedto(552)Candmaintainedatthistemperatureforatleast1h; b)
34、 withtheocularcooledtoatemperatureof(52) Candmaintainedatthistemperatureforatleast1h. Newocularsshallbeusedforeachindividualimpactandforeachtemperaturecondition.Theimpactshallbe appliedwithin30softemperatureconditioning. Thetestshallbecarriedoutat(235)C. Dimensionsinmillimetres(nominalunlesstoleranc
35、ed) Key 1 Supportingplate(12kgminimum) 2 Siliconeseatingrings 3O c u l a r 4 Loadring(250 5)g 5 Carbonpaperonwhitepaper Figure1Holdingdeviceforocularsfortheincreasedrobustnesstest 3.2 Completeeyeprotectorsandframes 3.2.1Apparatus 3.2.1.1 Appropriateheadform,asdefinedinclause17.EN168:2001(E) 7 3.2.1.
36、2 Adeviceenablinga22mmnominaldiametersteelballof43gminimummasstobeprojectedata specifiedpointontheeyeprotectorataspeedofapproximately5,1m/s. 3.2.2Procedure Theeyeprotectortobetestedshallbeplacedontheappropriateheadforminthepositioncorrespondingto normaluse. Iftheframeonlyistobeassessedthenocularsmee
37、tingtherequirementsof3.1(increasedrobustness)shallbe fittedtotheframe. Asheetofcarbonpaperontopofasheetofwhitepaperisattachedtotheheadformbehindtheeyeprotector. Theheadformandeyeprotectorassemblyispositionedinthetestapparatus. Theballisprojectedatthepointsofimpactdefinedin3.2.3. Forspectacleswithnol
38、ateralprotectiontheballshallstrikethesidearmwithintheprescribedlateralprotectionarea onaverticalplanethroughtheimpactcentre.(See3.2.3). Theimpactsarecarriedoutinthefollowingconditions: a) withtheeyeprotectorheatedto(552)Candmaintainedatthistemperatureforatleast1h; b) withtheeyeprotectorcooledtoatemp
39、eratureof(52)Candmaintainedatthistemperatureforatleast1h. Neweyeprotectorsshallbeusedforeachindividualpointofimpactandforeachtemperaturecondition.The impactshallbeappliedwithin30softemperatureconditioning. Thetestsshallbeconductedatanambienttemperatureof(235)C. 3.2.3 Pointsofimpact Therearefourimpac
40、tpoints,andthesearedefinedwithrespecttotheheadformratherthantheeyeprotector. Theballisaimedattheseimpactpointswiththeeyeprotectormountedinthenormaluseposition. Theimpactpointsshallbeconsideredasanysinglepointwithina10mmradiusofoneoffourimpactcentres. Theseimpactcentresaredenotedbyanasterisk(*)inFigu
41、re11. WithrespecttothetestschedulecontainedinEN166,thefourimpactpointsaredefinedasfollows: 1. thelefteyefrontal; 2. therighteyefrontal; 3. thelefteyeside; 4. therighteyeside. Forfrontalimpactsatthetwoeyecentrestheballisprojectednormaltotheverticalaxisoftheheadformand paralleltoitsopticalaxisalongeac
42、hlineofsight. Forlateralimpactstheheadformisrotatedaboutitsverticalaxisby90 (leftandright)fromthefrontalimpact position. Theheadformmaybemovedhorizontallyandverticallytoselectanysingleimpactpointlyingwithin10mmofthe specifiedimpactcentres. Asstatedin3.2.2,neweyeprotectorsshallbeusedforeachindividual
43、impact.EN168:2001(E) 8 4 Testforminimumrobustnessofocularswithfilteringeffectandcoverplates Newspecimensareusedforthistest. 4.1Apparatus SeeFigure2. 4.1.1Loading device Asteelballof22mmnominaldiameterisfastenedtothelowerendofatube,whoselengthis70mmnominal. Thetotalloadingmassissuchthattheforceactingontheocularis(1002)N. 4.1.2Specimen support Thesupportfortheocular(seeFigure2)shallbeasteelcylinderwithaninternaldiameterof(35,00,1)mmand anoutsidediameterof(41,00,1)mm.Thecylindershallbeinsertedinto,orbepartof,asteelbase. Thespecimenisplacedbetweentwoseatingringsmadeofsiliconeru
