| Measured Gas | Phosphine |
| Tube No. | 121U |
| Scaled Range | 0.1 to 2.0 ppm |
| Testable Range | 0.05 to 2.0 ppm |
| Unit Scale | ppm |
| Multi-Range | Yes |
| Original Color | Pale Yellow |
| Stain Color | Pink |
| Shelf Life | 2 Years |
| CAS No. | 7803-51-2 |
| Tube Layout | [ Detector Tube ] |
| Typical Applications |
Industrial hygiene, semiconductor mfg. process |
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