The standard values for service illuminance (Em [Lux]), color appearance (F), color rendering group (Ra), and unified glare restriction (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

Drying
50
ww, nw
20
28

Workstations and areas at furnaces, mixers, or grinders in brickworks

300

ww, nw

80

25

Enamelling, rolling, pressing, moulding simple parts, glazing, glass-blowing

300

ww, nw

80

25

Glass grinding, etching, polishing, moulding precision parts, glass instrument manufacture

750

ww, nw

80

19

Art work

750

ww, nw

80

16

Cutting lenses, cut glass

1000

nw: T > 4000 K

90

16

Hand cutting and engraving, medium accuracy work, precision working

1500

nw: T > 4000 K

90

16