| Ammonia | NH3 | NO.3HM | |
|
|
|||
| Performance |
|
Measuring Range |
0.05 to 1.6% |
1.6 to 3.52% |
|
Number of Pump Strokes |
1 |
1/2 |
|
Correction Factor |
1 |
2.2 |
|
Sampling Time |
1 minute per pump stroke |
|
|
Detecting Limit |
0.01% (n=1) |
|
|
Color Change |
Pink |
|
|
Reaction Principle |
Ammonia neutralizes acids to discolor the indicator to yellow. |
|
| Coefficient of Variation | 10% (for 0.05 to 0.4 %), 5% (for 0.4 to 1.6 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 |
|
Hydrazine |
- |
Plus error |
Discolor to yellow stain |
|
Pyridine |
- |
Plus error |
Discolor to yellow stain |
|
Amines other than aromatic amines |
- |
Plus error |
Discolor to yellow stain |
| Calibration gas generation | High pressure gas cylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25ppm | 35ppm | 15 to 28% |
|
|
| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Yellow