| Hydrogen chloride | HCl | NO.14M |
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| Performance |
|
Measuring Range |
10 to 20 ppm |
20 to 500 ppm |
500 to 1000 ppm |
|
Number of Pump Strokes |
2 |
1 |
1/2 |
|
Correction Factor |
1/2 |
1 |
2 |
|
Sampling Time |
1 minute per pump stroke |
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|
Detecting Limit |
2.5 ppm (n=2) |
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|
Color Change |
Yellow |
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|
Reaction Principle |
Hydrogen chloride reacts with indicator to produce red stain. |
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| Coefficient of Variation | 10% (for 20 to 100 ppm), 5% (for 100 to 500 ppm) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity |
Unnecessary | ||
| Store the tubes at cool and dark place. | |||
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Hydrogen fluoride |
600 ppm |
Plus error |
Produces red stain |
|
Nitric Acid |
1/10 time |
Plus error |
Produces red stain |
|
Nitrogen dioxide |
1/2 time |
Plus error. |
Produces red stain |
| Calibration gas generation | High pressure gas cylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 5ppm | - |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Red
Chemical reaction compound
500 ppm)