BS-EN-170-2002.pdf
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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 Po
2、licy 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 It supersedes BS EN 170:1992 which is withdrawn.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 Commi
3、ttee 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
4、 European 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 incl
5、ude 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 enqui
6、ries 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 c
7、over. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 170 October 2002 ICS 13.340.20Supersedes EN 170:1992 English version Personal eye-protec
8、tion - Ultraviolet filters - Transmittance requirements and recommended use Protection individuelle de loeil - Filtres pour lultraviolet - Exigences relatives au facteur de transmission et utilisation recommande Persnlicher Augenschutz - Ultraviolettschutzfilter - Transmissionsanforderungen und empf
9、ohlene Anwendung This European Standard was approved by CEN on 12 September 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and
10、bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility
11、 of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherl
12、ands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved
13、worldwide for CEN national Members. Ref. No. EN 170:2002 E EN 170:2002 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Designation and identification4 5Requirements.4 5.1General4 5.2Transmittance requirements.4 5.3Ocular with enhanced colour recognition (optio
14、nal) .5 Annex A (normative) Relative visual attenuation quotient for signal light recognition.6 Annex B (informative) Guidance on selection and use.8 Annex C (informative) Uncertainty of measurement and results interpretation.10 Annex ZA (informative) Clauses of this European Standard addressing ess
15、ential requirements or other provisions of EU Directives12 Bibliography13 EN 170:2002 (E) 3 Foreword This document (EN 170:2002) has been prepared by Technical Committee CEN /TC 85, “Eye-protective equipment“, the secretariat of which is held by AFNOR. This European Standard shall be given the statu
16、s of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2003, and conflicting national standards shall be withdrawn at the latest by April 2003. This document supersedes EN 170:1992. This document has been prepared under a mandate given to CEN b
17、y the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. In this European Standard, Annex A is normative and Annexes B and C
18、are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta,
19、Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. EN 170:2002 (E) 4 1 Scope This European Standard specifies the scale numbers and transmittance requirements for filters for protection against ultraviolet radiation. The other applicable requirements for these types of
20、 filters and the frames/mountings to which they are intended to be fitted are given in EN 166. Guidance on the selection and use of these filters are given in annex B. NOTEThe protective filters specified in this standard are not suitable for the direct viewing of bright light sources like Xenon hig
21、h-pressure arc lamps or for the direct or indirect observation of an electric welding arc. For this purpose a welding filter as specified in EN 169 and with a scale number appropriate to the source being observed should by used. 2 Normative references This European Standard incorporates by dated or
22、undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only w
23、hen incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 165:1995, Personal eye-protection Vocabulary. EN 166, Personal eye-protection Specifications. EN 167, Personal eye-protection Optical test meth
24、ods. ISO/CIE 10526:1999, CIE Standard illuminants for colorimetry. ISO/CIE 10527:1991, CIE Standard colorimetric observers. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 165:1995 apply. 4 Designation and identification The complete table of
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