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 ppb = 1.0000e-6 g/mL
1 g/mL = 1,000,000 ppb
例子:
将15 零件十亿转换为克每毫升：
15 ppb = 1.5000e-5 g/mL
| 零件十亿 | 克每毫升 |
|---|---|
| 0.01 ppb | 1.0000e-8 g/mL |
| 0.1 ppb | 1.0000e-7 g/mL |
| 1 ppb | 1.0000e-6 g/mL |
| 2 ppb | 2.0000e-6 g/mL |
| 3 ppb | 3.0000e-6 g/mL |
| 5 ppb | 5.0000e-6 g/mL |
| 10 ppb | 1.0000e-5 g/mL |
| 20 ppb | 2.0000e-5 g/mL |
| 30 ppb | 3.0000e-5 g/mL |
| 40 ppb | 4.0000e-5 g/mL |
| 50 ppb | 5.0000e-5 g/mL |
| 60 ppb | 6.0000e-5 g/mL |
| 70 ppb | 7.0000e-5 g/mL |
| 80 ppb | 8.0000e-5 g/mL |
| 90 ppb | 9.0000e-5 g/mL |
| 100 ppb | 1.0000e-4 g/mL |
| 250 ppb | 0 g/mL |
| 500 ppb | 0.001 g/mL |
| 750 ppb | 0.001 g/mL |
| 1000 ppb | 0.001 g/mL |
| 10000 ppb | 0.01 g/mL |
| 100000 ppb | 0.1 g/mL |
规则