| Phosphine | PH3 | NO.7L | |
|
|
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| Performance |
|
Measuring Range |
0.15 to 0.3 ppm |
0.3 to 5 ppm |
|
Number of Pump Strokes |
10 |
5 |
|
Correction Factor |
1/2 |
1 |
|
Sampling Time |
1 minute per pump stroke |
|
|
Detecting Limit |
0.04 ppm (n = 10) |
|
|
Color Change |
Pale yellow |
|
|
Reaction Principle |
PH3 + Au compoundv |
|
| Coefficient of Variation | 10% (for 0.3 to 1 ppm), 5% (for 1 to 5 ppm) | |
| Shelf Life | 3 Years | |
| Corrections for temperature & humidity |
Unnecessary | |
| Store the tubes at cool and dark place. | ||
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Arsine |
- |
Plus error |
Produces purple stain |
|
Germane |
- |
Plus error |
Produces purple stain |
|
Hydrogen selenide |
- |
Plus error |
Produces purple stain |
|
Hydrogen sulfide |
- |
Plus error |
Produces purple stain |
| Calibration gas generation | High pressure gas cylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.3ppm | 1ppm | - |
|
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Purple
Colloidal