PREN 12464-1 : DRAFT 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Lighting design criteria
  4.1 Luminous environment
  4.2 Luminance distribution
  4.3 Illuminance
       4.3.1 General
       4.3.2 Scale of illuminance
       4.3.3 Illuminances on the task area
       4.3.4 Illuminance on the immediate surrounding area
       4.3.5 Illuminance on the background area
       4.3.6 Illuminance uniformity (U[o])
  4.4 Illuminance grid
  4.5 Glare
       4.5.1 General
       4.5.2 Discomfort glare
       4.5.3 Shielding against glare
       4.5.4 Veiling reflexions and reflected glare
  4.6 Lighting in the interior space
       4.6.1 General
       4.6.2 Mean cylindrical illuminance requirement in
              the activity space
       4.6.3 Modelling
       4.6.4 Directional lighting of visual tasks
  4.7 Colour aspects
       4.7.1 General
       4.7.2 Colour appearance
       4.7.3 Colour rendering
  4.8 Flicker and stroboscopic effects
  4.9 Maintenance factor
  4.10 Energy efficiency requirements
  4.11 Daylight
  4.12 Lighting of work stations with Display Screen
       Equipment (DSE)
       4.12.1 General
       4.12.2 Luminaire luminance limits with downward flux
  4.13 Variability of light
5 Schedule of lighting requirements
  5.1 Composition of the tables
  5.2 The schedule of interior areas, tasks and activities
  5.3 Lighting requirements for interior areas, tasks and
       activities
6 Verification procedures
  6.1 General
  6.2 Illuminances
  6.3 Unified Glare Rating
  6.4 Colour rendering and Colour appearance
  6.5 Luminaire luminance
  6.6 Maintenance schedule
Annex A (informative) - A-deviation
Bibliography
Index of interior areas, tasks and activities

Describes lighting requirements for indoor work places, which meet the needs for visual comfort and performance.