BS EN 168-2002 Personal eye-protection - Non-optical test methods《个人眼睛保护 非光学试验方法》.pdf

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 It supersedes BS EN 168:1995 which is withdrawn.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