零件百万 | 每立方厘米的痣 |
---|---|
0.01 ppm | 0.01 mol/cm³ |
0.1 ppm | 0.1 mol/cm³ |
1 ppm | 1 mol/cm³ |
2 ppm | 2 mol/cm³ |
3 ppm | 3 mol/cm³ |
5 ppm | 5 mol/cm³ |
10 ppm | 10 mol/cm³ |
20 ppm | 20 mol/cm³ |
50 ppm | 50 mol/cm³ |
100 ppm | 100 mol/cm³ |
250 ppm | 250 mol/cm³ |
500 ppm | 500 mol/cm³ |
750 ppm | 750 mol/cm³ |
1000 ppm | 1,000 mol/cm³ |