| Estimated hydrogen sulfide concentration |
Sample reference dosage ml | |
| Volume fraction % | Concentration mg/m3 | |
| <0.0005 | <7.2 | 150000 |
| 0.0005~0.001 | 7.2~14.3 | 100000 |
| 0.001~0.002 | 14.3~28.7 | 50000 |
| 0.002~0.005 | 28.7~71.7 | 30000 |
| 0.005~0.01 | 71.7~143 | 15000 |
| 0.01~0.02 | 143~287 | 8000 |
| 0.02~0.1 | 287~1430 | 5000 |
| 0.1~0.2 | 2500 | |
| 0.2~0.5 | 1000 | |
| 0.5~1 | 500 | |
| 1~2 | 250 | |
| 2~5 | 100 | |
| 5~10 | 50 | |
| 10~20 | 25 | |
| 20~50 | 10 | |
| 50~100 | 5 | |