| Hydrazine | N2H4 | NO.185 | |
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| Performance |
|
Measuring Range |
0.05 to 0.1 ppm |
0.1 to 2.0 ppm |
|
Number of Pump Strokes |
10 |
5 |
|
Correction Factor |
1/2 |
1 |
|
Sampling Time |
1 minute per pump stroke |
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|
Detecting Limit |
0.01 ppm (n=10) |
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Color Change |
Pink |
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Reaction Principle |
Hydrazine is neutralized by sulfuric acid and discolor pH indicator to yellow. |
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| Coefficient of Variation |
10% (for 0.1 to 0.5 ppm), 5% (for 0.5 to 2 ppm) |
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| Shelf Life | 3 Years | |
| Corrections for temperature & humidity |
Humidity correction is necessary | |
| Store the tubes at cool and dark place. | ||
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Amines & Ammonia |
- |
Plus error |
Produces yellow stain. |
| Other substance measurable with this detector tube |
|
Substance |
Correction |
No. of pump strokes |
Measuring range |
|
Dimethyl hydrazine |
Factor:1 |
5 |
0.1 to 2 ppm |
|
Methyl hydrazine |
Factor: 6 |
5 |
0.6 to 12 ppm |
| Calibration gas generation | Permeation tube method | |
| TLVtoTWA | TLVtoSTEL | Explosive range |
| 0.01ppm | - | 2.9 to 98% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Yellow