| Measuring Range |
| 0.04 to 0.1 ppm |
0.1 to 1.5 ppm |
1.5 to 2.4 ppm |
2.4 to 10 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
1.5 minutes per pump stroke |
| Detecting Limit |
0.02 ppm (n=10) |
| Colour Change |
Yellow → Red |
| Reaction Principle |
Arsine react with mercuric chloride to produce hydrogen chloride.
The indicator of the tube turns to red.
AsH3 + 3HgCl2 → As(HgCl)3 + 3HCl
HCl + Basic compound → chloride compounds
|
| Coefficient of Variation |
10% (for 0.1 to 0.5 ppm), 5% (for 0.5 to 1.5 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes at cool and dark place. |
