No | Unit | SI Unit | Description |
---|---|---|---|
1 | ppm | μmol/mol | parts per million |
2 | ppb | nmol/mol | parts per billion |
3 | ppt | pmol/mol | parts per trillion |
4 | permil | mmol/mol | per mille |
5 | Bq/m3 | ||
6 | μmol/kg | ||
7 | μmol/l | ||
8 | mBq/m3 | ||
9 | pmol/kg | ||
10 | nmol/kg | ||
11 | μg/m3-20C | ||
12 | mg/m3-25C | ||
13 | μg/m3-25C | ||
14 | fmol/kg | ||
15 | per meg | ||
88 | Unknown |