| Ozone | O3 | NO.18M | |
|
|
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| Performance |
|
Measuring Range |
4 to 20 ppm |
20 to 200 ppm |
200 to 40ppm |
|
Number of Pump Strokes |
2 to 5 |
1 |
1/2 |
|
Correction Factor |
1/2 to 1/5 |
1 |
2 |
|
Sampling Time |
1 minute per pump stroke |
||
|
Detecting Limit |
1 ppm (n=5) |
||
|
Color Change |
Orange |
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|
Reaction Principle |
Ozone racts with indicator to produce Yellow stain. |
||
| Coefficient of Variation | 10% (for 20 to 60 ppm), 5% (for 60 to 200 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 color by itself |
|
Hydrogen chloride |
- |
No effect |
Produces red stain |
|
Hydrogen fluoride |
- |
No effect |
Produces red stain |
|
Boron trifluoride |
- |
No effect |
Produces red stain |
|
Phosphine |
- |
No effect |
Produces red stain |
|
Arsine |
- |
No effect |
Produces red stain |
|
Chlorine |
- |
Plus error |
Produce pale yellow stain |
|
Nitrogen dioxide |
- |
Plus error |
Produce pale yellow stain |
| Calibration gas generation | Ozone generater | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.1ppm | - | - |
|
|
| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Pale yellow
Chemical reaction compound