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  • BS EN 171:2002

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Personal eye-protection. Infrared filters. Transmittance requirements and recommended use

    Available format(s):  Hardcopy, PDF

    Superseded date:  06-06-2022

    Language(s):  English

    Published date:  13-05-2002

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Designation and identification
    5 Requirements
      5.1 General
      5.2 Transmittance requirements
      5.3 Oculars with enhanced colour recognition (optional)
      5.4 Oculars with enhanced reflectance in the infrared (optional)
    Annex A (normative) Relative visual attenuation quotient for
            signal light recognition
          A.1 Definition of relative visual attenuation quotient for
              signal light recognition
          A.2 Spectral functions for the calculation of luminous
              transmittance and relative visual attenuation quotients
    Annex B (informative) Guidance on selection and use
          B.1 General
          B.2 Filters with enhanced colour recognition
          8.3 Filters with enhanced reflectance in the infrared
    Annex C (informative) Uncertainty of measurement and results
            interpretation
          C.1 Test report and uncertainty of measurement
    Annex ZA (informative) Clauses of this European Standard addressing
             essential requirements or other provisions of EU Directives

    Abstract - (Show below) - (Hide below)

    Specifies the transmittance requirements and the scale numbers for filters for protection against infra-red radiation.

    General Product Information - (Show below) - (Hide below)

    Committee PH/2/2
    Development Note Supersedes 99/563097 DC. (06/2002)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 7028:1999 Eye protection for industrial and other uses. Guidance on selection, use and maintenance

    Standards Referencing This Book - (Show below) - (Hide below)

    89/686/EEC : 1989 AMD 5 2012 COUNCIL DIRECTIVE OF 21 DECEMBER 1989 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO PERSONAL PROTECTIVE EQUIPMENT
    ISO/CIE 10527:1991 CIE standard colorimetric observers
    EN 165:2005 Personal eye-protection - Vocabulary
    EN 166:2001 Personal eye-protection - Specifications
    EN 167:2001 Personal eye-protection - Optical test methods
    ISO/CIE 10526:1999 CIE standard illuminants for colorimetry
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