| Measuring Range |
| 5 to 10 ppm |
10 to 100 ppm |
100 to 200 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
3 minutes per pump stroke |
| Detecting Limit |
1 ppm (n=2) |
| Colour Change |
Blue → Yellow |
| Reaction Principle |
COS + I2O5 + H2SO4 → SO2 + CO2
SO2 + BaCl2 + H2O → BaSO3+ HCl
HCl + Base → Chloride |
| Coefficient of Variation |
10% (for 10 to 30 ppm), 5% (for 30 to 100 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
