| Measuring Range |
| 0.25 to 5 ppm |
5 to 12 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
2 minutes per pump stroke |
| Detecting Limit |
0.05 ppm (n=2) |
| Colour Change |
White → Yellow |
| Reaction Principle |
CCl4 + I2O5 + H2S2O7 → COCl2
COCl2 + (CH3)2NC6 H4CHO→ (CH3)2NC6 H4Cl2 + CO2
(CH3)2NC6H4Cl2 + (C6H5)2NH4 (White) → Reaction product (Yellow) |
| Coefficient of Variation |
10% (for 0.25 to 1 ppm), 5% (for 2 to 5 ppm) |
| Shelf Life |
1 Year |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
