| Hydrogen peroxide | H2O2 | NO.32 |
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| Performance |
|
Measuring Range |
0.5 to 10 ppm |
|
Number of Pump Strokes |
5 |
|
Correction Factor |
1 |
|
Sampling Time |
1minute per pump stroke |
|
Detecting Limit |
0.1 ppm (n=5) |
|
Color Change |
White |
|
Reaction Principle |
Hydrogen peroxide reacts with titan sulfuric acid to form yellow products. |
| Coefficient of Variation | 10% (for 0.5 to 2 ppm), 5% (for 4 to 10 ppm) |
| Shelf Life | 3 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes at cool and dark place. | |
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Chlorine |
- |
No effect |
No discoloration |
|
Ozone |
- |
No effect |
No discoloration |
|
Nitrogen dioxide |
- |
No effect |
No discoloration |
|
Acetaldehyde |
50 ppm |
Faint demarcation |
No discoloration |
|
Formaldehyde |
10 ppm |
Minus error |
No discoloration |
| Calibration gas generation | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 1ppm | - | - |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Yellow
Reaction Product