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Phosphine detection tube 7LA Phosphine PH3
Phosphine detection tube 7 LA Phosphine PH3，Measuring Range 0.05 to 0.1 ppm 0.1 to 1.5 ppm 1.5 to 2.5 ppm 2.5 to 9.8 ppm， Emergency detection boxes f
Product details
磷化氢检测管7 LA Phosphine PH3
Phosphine No.7LA
PH3
| Performance |
Measuring Range |
0.05 to 0.1ppm |
0.1 to 1.5 ppm |
1.5 to 2.5 ppm |
2.5 to 9.8 ppm |
Pump Strokes |
10 |
5 |
3 |
1 |
Correction Factor |
1/2 |
1 |
1.7 |
6.5 |
Sampling Time |
1.5 minutes per pumpstroke |
|||
Detecting Limit |
0.02 ppm (n =10) |
|||
Color Change |
Yellow → Red |
|||
Reaction Principle |
PH3 +3HgCl2→ P(HgCl)3 +3HCl |
|||
| Coefficient ofVariation | 10% (for0.1 to 0.4 ppm), 5% (for 0.4 to 1.5 ppm) | |||
| ShelfLife | 2Years | |||
| Correctionsfor temperature & humidity |
Unnecessary | |||
| Store the tubes at cool and darkplace. | ||||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance |
Concentration |
Interference |
Change color by itself |
Arsine |
1/10 time |
Plus error |
Produces redstain |
Hydrogenchloride |
- | No effect |
Nodiscoloration |
Diborane |
- | No effect |
Nodiscoloration |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | High pressure gascylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.3ppm | 1ppm | - |
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