The standard values for service illuminance (Em [Lux]), color appearance (F), color rendering group (Ra), and unified glare restriction class (UGRL) according to EN 12464-1 are listed in the table for the various types of interior or activity. The ratings for service illuminance, color rendering group, and direct glare restriction class represent minimum values to be met by the lighting system.


Interiors / Activities

Em[lx]

F

Ra

UGRL

Classrooms in primary and secondary schools

300**

ww, nw

80

19

Classrooms for evening classes and adult education

500**

ww, nw

80

19
Lecture halls 500** ww, nw 80 19
Blackboard, demonstration table 500 ww, nw 80 19
Drawing rooms

500

ww, nw, tw

80

19
Drawing rooms for art schools
750 T > 5000 K 90 19
Rooms for technical drawing 750 ww, nw, tw 80 16
Practice rooms and laboratories 500 ww, nw 80 19
Hand workrooms 500 ww, nw 80 19
Training workshops 500 ww, nw 80 19
Preparation rooms and workshops 500 ww, nw 80 22
Music practice rooms 300 ww, nw 80 19
Computer practice rooms 300 ww, nw 80 19***
Language laboratories 300 ww, nw 80 19
Common areas for pupils / students and common areas 200 ww, nw 80 22
Staff rooms 300 ww, nw 80 19
Libraries: Bookshelves 200 ww, nw 80 19
Libraries: Reading areas 500 ww, nw 80 19
Course material collection 100 ww, nw 80 25
Sport halls, gymnasia, indoor swimming pools 300 ww, nw 80 22
Corridors 200 ww, nw 80 22

Corridors, circulation areas
 100 ww, nw 80 25
Stairs 150 ww, nw 80 25
School canteens 200 ww, nw 80 22
Kitchens 500 ww, nw 80 22