| Measured Gas | Phosphine In Acetylene |
| Tube No. | 121SB |
| Scaled Range | 5 to 90 ppm |
| Testable Range | 5 to 90 ppm |
| Unit Scale | ppm |
| Multi-Range | No |
| Original Color | Pale Blue |
| Stain Color | Yellowish Brown |
| Shelf Life | 3 Years |
| CAS No. | 7803-51-2 |
| Tube Layout | [ Detector Tube ] |
| Typical Applications |
Impurity test of calcium carbide & acetylene |
| Air Flow Requirements |
Air flow control orifice is required. |
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