| Measuring Range |
| 0.5 to 2 ppm |
2 to 12 ppm |
12 to 30 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
2 minutes per pump stroke |
| Detecting Limit |
0.2 ppm (n=4) |
| Colour Change |
White → Pale purple |
| Reaction Principle |
CHCl3 + I2O5 + H2S2O7 → Cl2
Cl2 + (CH3C10H5NH2)2→ Pale purple products |
| Coefficient of Variation |
10% (for 2 to 4 ppm), 5% (for 4 to 12 ppm) |
| Shelf Life |
1 Year |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
