| Carbon tetrachloride | CCl4 | NO.134 |
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| Performance |
|
Measuring Range |
0.5 to 2.5 ppm |
2.5 to 60 ppm |
|
Number of Pump Strokes |
2 to 5 |
1 |
|
Correction Factor |
1/2 to 1/5 |
1 |
|
Sampling Time |
1.5 minutes per pump stroke |
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|
Detecting Limit |
0.2 ppm (n=5) |
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|
Color Change |
White |
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|
Reaction Principle |
Carbon tetrachloride react with reagent to produce intermediate products in the primary tube. The intermediate products react with reagent in the analyzer tube to produce yellow stain. |
|
| Coefficient of Variation |
15% (for 2.5 to 20 ppm), 10% (for 20 to 60 ppm) |
|
| Shelf Life | 1 Years | |
| 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 |
100ppm |
Plus error |
Produce yellow stain |
|
Chlorine, Bromine |
50ppm |
Plus error |
Produce yellow stain |
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Vinyl chloride, |
- |
None |
No discoloration |
|
Chloroform |
- |
None |
No discoloration |
|
Methyl bromide |
100ppm |
Plus error |
Produce yellow stain |
|
Tetrachloroethylene |
- |
None |
No discoloration |
|
Methyl chloroform |
100ppm |
Plus error |
Produce yellow stain |
|
Trichloroethylene |
- |
None |
No discoloration |
| Other substance measurable with this detector tube |
|
Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
|
Chloropicrin |
1.0 |
1 |
25 to 60 % |
| Calibration gas generation | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 5ppm | 10ppm | - |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Yellow