| Chlorine Dioxide | ClO2 | NO.23L |
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| Performance |
|
Measuring Range |
0.25 to 0.05 ppm |
(0.05) to 0.6 ppm |
0.6 to 1.2 ppm |
|
Number of Pump Strokes |
2 |
1 |
1/2 |
|
Correction Factor |
1/2 |
1 |
2 |
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Sampling Time |
2 minute per pump stroke |
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Detecting Limit |
0.005 ppm (n=2) |
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Color Change |
White |
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Reaction Principle |
Chlorine dioxide oxidizes the indicatorto produce pale green discoloration. |
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| Coefficient of Variation | 10% (for 0.05 to 0.2 ppm), 5% (for 0.2 to 0.6 ppm) | ||
| Shelf Life | 1 Years | ||
| Corrections for temperature & humidity |
Unnecessary | ||
| Store the tubes in the refrigerator to keep at 10oC (50oF) or below. | |||
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Ammonia |
- |
No effect |
No discoloration |
|
Carbon monoxide, Carbon dioxide |
- |
No effect |
No discoloration |
|
Hydrogen |
- |
No effect |
No discoloration |
|
Hydrogen chloride |
- |
No effect |
No discoloration |
| Sulfur dioxide | - |
No effect |
No discoloration |
| Nitrogen dioxide | - |
Plus error |
Pale green |
| Chlorine | - |
Plus error |
Pale green |
| Bromine, Iodine | - |
Plus error |
Pale green |
| Hydrogen sulfide | - |
No effect |
No discoloration |
| Organic vapors | - | No effect | No discoloration |
| Calibration gas generation | Permeation tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.1ppm | 0.3ppm | - |
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| Copyright(c) 2002 GASTEC CORPORATION. All rights reserved. |
Pale Green