| Cl2 |
 |
Performance
| Measuring Range |
| 0.1 to 0.5 ppm |
0.5 to 8 ppm |
8 to 16 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
1 minute per pump stroke |
| Detecting Limit |
0.05 ppm (n=5) |
| Colour Change |
White → Pale pink |
| Reaction Principle |
Cl2 + o - Tolidine → Pale pink products |
| Coefficient of Variation |
10% (for 0.5 to 2 ppm), 5% (for 2 to 8 ppm) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Nitric oxide |
|
+ |
Pale pink |
| Ozone |
|
+ |
Pale pink |
| Nitrogen dioxide |
|
+ |
Pale pink |
| Chlorine dioxide |
|
+ |
Pale pink |
| Bromine, Iodine |
|
+ |
Pale pinky |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| Bromine |
0.1 |
4 |
0.05 to 0.8 ppm |
Chlorine dioxide
|
0.6 |
1 |
0.3 to 4.8 ppm |
| Calibration gas generation |
Permeation tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 0.5 ppm |
1 ppm |
- |
