Thresholds: |
TWA | STEL |
mg/m3 | mg/m3 | |
Australia | 0.05 | |
Belgium | 0.05 | |
Czechoslovakia | 0.05 | 0.1 |
Denmark | 0.01 | |
Finland | 0.02 | |
Great Britain | 0.05 | |
Russia | 0.01 | 0.05 |
Japan | 6 | |
Sweden | 6 | |
Switzerland | 0.02 (dust) | |
United States: ACGIH | 0.05 | |
United States: NIOSH/OSHA | 0.2 |