Ammonia (NH3) Detection Tubes (0.5 to 78 ppm)
Gastec Low Range Detector Tube No 3L is used for the detection of Ammonia in air or the industrial areas and environmental atmospheric
condition.
- Measuring Range:
- 0.5 to 1 ppm - 2 pump strokes
Correction Factor: 1/2
- 1 to 30 ppm - 1 pump stroke
Correction Factor: 1
- 30 to 78 ppm - 1/2 pump stroke
Correction Factor: 2.6
- Sampling Time: 45 seconds per pump stroke
- Changes from Pink to Yellow
- Corrections for temperature & humidity: Temperature correction is necessary
- 3 Year Shelf Life
- Reaction Principle: 2NH3 + H2SO4 → (NH4)2SO4
- Store the tubes at a cool and dark place.
Possible coexisting substances and their interferences:
| Substance |
Concentration |
Interference |
Changes color by itself to |
| Amines |
≧ 1/15 |
+ |
Yellow (≧ 5 ppm) |
| Hydrazine |
|
+ |
Yellow |
| Carbon dioxide |
≧ 1% |
- (20%) |
No |
Ammonia (NH3) Detection Tubes (0.5 to 78 ppm)
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