Ethanol |
NO.112 |
| C2H5OH |  |
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Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 3 minutes per pump stroke | |||
| Detecting Limit | 0.004% (n=2) | |||
| Colour Change | Pink → Pale blue | |||
| Reaction Principle | C2H5OH + Cr6+ + H2SO4 → Cr3+ | |||
| Coefficient of Variation | 15% (for 0.05 to 0.5 %), 10% (for 0.5 to 2.5 %) | |||
| 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 colour by itself to |
| Carbon monoxide | No | No | |
| Carbon dioxide | No | No | |
| Alcohols | + | Pale blue |
| Calibration gas generation | Static gas dilution method |
| TLV-TWA | TLV-STEL | Explosive range |
| 1000 ppm | - | 3.3 to 19% |
