| Carbon tetrachloride | CCl4 | NO.134L |
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| Performance |
|
Measuring Range |
0.25 to 5 ppm |
5 to 12 ppm |
|
Number of Pump Strokes |
2 |
1 |
|
Correction Factor |
1 |
2.4 |
|
Sampling Time |
2 minutes per pump stroke |
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Detecting Limit |
0.05 ppm (n=2) |
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Color Change |
White |
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Reaction Principle |
Carbon tetrachloride reacts with reagent to produce intermediate products in the primary tube. The intermediate products react with reagent in the analyzer tube to produce yellow stain. |
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| Coefficient of Variation |
10% (for 0.25 to 1 ppm), 5% (for 2 to 5 ppm) |
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| Shelf Life | 1 Year | |
| Corrections for temperature & humidity |
Unnecessary | |
| Store the tubes in the refrigerator to keep at 10oC (50oF) or below. | ||
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Hydrogen chloride |
- |
None |
No discoloration |
|
Chlorine, Bromine |
5 ppm |
Plus error |
Produce yellow stain |
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Methyl bromide |
20ppm |
Plus error |
Yellow |
|
1,1,1-Trichloroethane |
20 ppm |
Plus error |
Yellow |
| Calibration gas generation | Permeation tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 5ppm | 10ppm | - |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Yellow