Foreword
      Introduction
1 Scope and object
2 Normative references
3 Definitions
4 Manufacturing requirements
5 Labelling
6 Tests and measurements for categorization and labelling
      6.1 General
      6.2 Determination of the apparent source size
      6.3 Determination of the angular subtense
      6.4 Measurements of optical radiation
      6.5 Nominal ocular hazard distance
      6.6 Repetitively pulsed, modulated or scanned radiation
      6.7 Simplified categorization procedure
Figure 1 - MPE-related maximum allowable luminous intensities of visible
           DEs in Type 1
Figure B.1 - Examples of modified cosine distributions
Figure B.2 - Measurement cone: different radiant intensities for the
             same MPE corresponding to the spatial distribution of the
             radiation
Annex A (informative) Rationale
Annex B (informative) Conversion of the maximum permissible exposure
                      (MPE) limits into luminous intensities of LEDs