Lux level for visual inspection for tablets

Can anybody help me regarding regulatory requirement for lux level required for tablet visual inspection table. If any regulatory requiremnt exists kindly attach ref. also

Dear Varun,

Lighting levels of 65 to 75 foot candles are sufficient in most of the packing areas. In inspection areas you require about 100-125 foot candles of light.

1 foot candle = 10.7639104167 lux .