| Ethylene glycol | HOCH2CH2OH | NO.165L |
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| Performance |
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Measuring Range |
10 to 100 mg/m3 |
|
Number of Pump Stroke |
2 |
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Correction Factor |
1 |
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Sampling Time |
2 minutes per pump stroke |
|
Detecting Limit |
2 mg/m3 (n=2) |
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Color Change |
Yellow |
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Reaction Formula |
Ethylene glycol reacts with oxidizing agent to produce intermediate substance then react with analyzing reagent to discolor the indicator to reddish brown color. |
| Coefficient of Variation | 15% (for 10 to 50 mg/m3),10% (for 50 to 150 mg/m3) |
| Shelf Life | 3 Years |
| 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) |
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Substance |
Concentration |
Interference |
Change color by itself |
|
Aldehydes, Ketones, |
- |
Plus error |
Discolor reddish brown stain |
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Tetrahydrothiophene, |
1mg/m3 |
Plus error |
Discolor reddish brown |
| Calibration gas generation | Vaper pressure method | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 100 mg/m3 | 3.2 to 33% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Reddish brown