| Pyridine | C5H5N | NO.182 | |
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| Performance |
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Measuring Range |
0.2 to 0.5 ppm |
(0.5) to 14 ppm |
14 to 35 ppm |
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Number of Pump Strokes |
2 |
1 |
1/2 |
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Correction Factor |
0.4 |
1 |
2.5 |
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Sampling Time |
2 minutes per pump stroke |
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Detecting Limit |
0.1 ppm (n=2) |
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Color Change |
Pink |
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Reaction Principle |
C5H5N + H2SO4  C5H5N - H2SO4 |
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| Coefficient of Variation | 10% (for 0.5 to 4 ppm), 5% (for 4 to 14 ppm) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity |
Temperature correction is necessary |
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| Store the tubes at cool and dark place. |
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| Possible coexisting substances and their interferences | (NOTE) |
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Substance |
Concentration |
Interference |
Change color by itself |
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Aromatic amines |
- |
Plus error |
Yellow |
| Aliphatic amines | - | Plus error | Yellow |
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Ammomia |
- |
Plus error |
Yellow |
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Hydrazine |
- |
Plus error |
Yellow |
| Other substance measurable with this detector tube |
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Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
|
4-Methyl pyridine |
0.75 |
1 |
0.38 to 10.5 ppm |
| Calibration gas generation | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 5 ppm | - | 1.8 to 12.4 % |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |