Illumination and Limitation Values (Contd.)
Process
Illumination lux
Limiting glare index
  • Chemical Works:
    Hand furnaces, boiling tanks, stationary driers, evaporators, filtration plants, extractors and electrolytic cells
150
28

Controls, gauages, values, etc.

100
-
  • Foundries:
    Charging floors, tumbling, cleaning, pouring, shaking out and core making

150

28

Fine moulding and core making, indpection

300
25
  • Iron and Steel Works:
    Marshalling and outdoor stock-yards

10 to 20
-

Stairs, gandways, basements, quarries and loading docks
Slab yards, melting shops, stripping, soaking pits and pump houses

100
-

Mould preparation, rolling and wire mills, mill motor rooms and power houses

150
28

Plate Inspection

300
-

Tin plate inspection

Special lighting
-
  • Laboratories and Test Rooms:
    General laboatories, balance rooms

300

19

Electrical and instrument laboratories

450
19
  • Machine and Fitting Shops:
    Rough bench and machine work

150

28
Medium bench and machine work
300
25
Fine bench and machine work
760
22
  • Motor Vehicle Plant:
    Car assembly, chassis assembly

300

25
Final inspection
450
25
Trim shops and body assembly
300
25
Spray booths
450
-
  • Paint Shops
    Dipping, firing, rough spraying

150

25
Rubbing, ordinary painting, spraying
300
15
Medium bench and machine work
700
19
  • Pharmaceuticals and Fine Chemical Works:
    Raw material storage

200

28

Control laboratories and testing

300
19

Manufacturing

300
25

Fine chemical finishing

300
25
  • Textile Mills:
    Bale making, blowing, carding, spinning, heckling, cabbing

150

25
Wrapping, siashing, dressing and dyeing
200
25
Weaving
700
19
Cloth inspection
1700
19

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