Ruwac industriesauger NA 7-26, Instruction Manual

Page: 13 / 64

Safety
Page 13
2.4 Dust classes
Wet separators are divided into dust classes:
 L = Low hazard
The wet separator is suitable for vacuuming up dusts that are
dry and non-hazardous to health and that have a workplace
exposure limit (WEL) of > 1 mg/m
3
.
 M = Medium hazard, this includes class L
The wet separator is suitable for vacuuming dusts that are dry
and hazardous to health and that have a workplace exposure
limit (WEL) of > 0.1 mg/m
3
.
 H = High hazard, this includes classes L and M
The wet separator is suitable for vacuuming dusts that are dry,
carcinogenic and otherwise hazardous to health and that have
a workplace exposure limit (WEL) of < 0.1 mg/m
3
.
The wet separator is suitable for dust class H.