浓度（摩尔）是每升溶液的摩尔数量的度量，通常以每升摩尔（mol/l）测量。
1 ppm = 0.001 g/L
1 g/L = 1,000 ppm
例子:
将15 零件百万转换为克每升：
15 ppm = 0.015 g/L
| 零件百万 | 克每升 |
|---|---|
| 0.01 ppm | 1.0000e-5 g/L |
| 0.1 ppm | 0 g/L |
| 1 ppm | 0.001 g/L |
| 2 ppm | 0.002 g/L |
| 3 ppm | 0.003 g/L |
| 5 ppm | 0.005 g/L |
| 10 ppm | 0.01 g/L |
| 20 ppm | 0.02 g/L |
| 30 ppm | 0.03 g/L |
| 40 ppm | 0.04 g/L |
| 50 ppm | 0.05 g/L |
| 60 ppm | 0.06 g/L |
| 70 ppm | 0.07 g/L |
| 80 ppm | 0.08 g/L |
| 90 ppm | 0.09 g/L |
| 100 ppm | 0.1 g/L |
| 250 ppm | 0.25 g/L |
| 500 ppm | 0.5 g/L |
| 750 ppm | 0.75 g/L |
| 1000 ppm | 1 g/L |
| 10000 ppm | 10 g/L |
| 100000 ppm | 100 g/L |
规则