零件百万 | Weight Percent |
---|---|
0.01 ppm | 1.0000e-6 %wt |
0.1 ppm | 1.0000e-5 %wt |
1 ppm | 1.0000e-4 %wt |
2 ppm | 0 %wt |
3 ppm | 0 %wt |
5 ppm | 0.001 %wt |
10 ppm | 0.001 %wt |
20 ppm | 0.002 %wt |
50 ppm | 0.005 %wt |
100 ppm | 0.01 %wt |
250 ppm | 0.025 %wt |
500 ppm | 0.05 %wt |
750 ppm | 0.075 %wt |
1000 ppm | 0.1 %wt |