| name | range (ppm) | in box | |
|---|---|---|---|
| 121SC Phosphine | 20-700 | 10 | |
| 121SD Phosphine | 1-20.0 0.5-10.0 0.25-0.5 | 10 | |
| 121SG Phosphine | 5-150 | 10 | |
| 121SH Phosphine | 100-1600 200-3200 | 10 | |
| 121SS Phosphine | 400-6000
200-3000 | 10 | |
| 121U Phosphine | 0.1-2.0 0.05-1.0 | 10 |
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