| Ethylene oxide | C2H4O | NO.163L | |
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| Performance |
|
Measuring Range |
0.4 to 1 ppm |
1 to 100 ppm |
100 to 350 ppm |
|
Number of Pump Stroke |
4 |
2 |
1 |
|
Correction Factor |
0.4 |
1 |
3.5 |
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Sampling Time |
3 minutes per pump stroke |
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Detecting Limit |
0.1 ppm (n=4) |
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Color Change |
Yellow |
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Reaction Formula |
C2H4O |
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| Coefficient of Variation | 15% (for 1 to 20 ppm), 10% (for 20 to 100 ppm) | ||
| Shelf Life | 1 Year | ||
| Corrections for temperature & humidity |
Temperature correction is necessary | ||
| 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 |
|
Aldehydes, Ketones |
- |
Plus error |
Produce reddish brown stain |
| Other substance measurable with this detector tube |
|
Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
|
Epichlorohydrin |
1.2 |
2 |
1.2 to 120 ppm |
|
Propylene oxide |
1.0 |
1 |
1 to 100 ppm |
| Calibration gas generation | Permeation tube method | |
| TLV to TWA | TLV to STEL | Explosive range |
| 1ppm | - | 3.6 to 100% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Reddish brown
2HCHO
H3PO4
Phosphate