| Ethyl ether | (C2H5)2O | NO.161L | |
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| Performance |
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Measuring Range |
10 to 400 ppm |
400 to 1200 ppm |
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Number of Pump Strokes |
2 |
1 |
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Correction Factor |
1 |
3 |
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Sampling Time |
4 minutes per pump stroke |
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Detecting Limit |
2 ppm (n=2) |
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Color Change |
Yellow |
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Reaction Principle |
Ethyl ether reduces cromic acid to produce pale blue discoloration. |
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| Coefficient of Variation |
10% (for 10 to 100 ppm), 5% (for 100 to 400 ppm) |
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| Shelf Life | 2 Years | |
| Corrections for temperature & humidity |
Temperature correction is necessary | |
| Store the tubes at cool and dark place. | ||
| Possible coexisting substances and their interferences | (NOTE) |
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Substance |
Concentration |
Interference |
Change color by itself |
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Alcohols |
- |
Plus error |
Produce pale blue discoloration |
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Esters |
- |
Plus error |
Produce pale blue discoloration |
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Ketones |
- |
Plus error |
Produce pale blue discoloration |
| Calibration gas generation | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 400ppm | 500ppm | 1.9 to 4 8% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Pale blue