| Toluene | C6H5CH3 | NO.122L | |
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| Performance |
|
Measuring Range |
1 to 2 ppm |
2 to 50 ppm |
50 to 100 ppm |
|
Number of Pump Strokes |
4 |
2 |
1 |
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Correction Factor |
1/2 |
1 |
2 |
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Sampling Time |
1.5 minutes per pump stroke |
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|
Detecting Limit |
0.5 ppm (n=4) |
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|
Color Change |
White |
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Reaction Principle |
C6H5CH3 + I2O5 + H2SO4 |
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| Coefficient of Variation | 10% (for 2 to 100 ppm), 5% (for 10 to 50 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 |
Interference |
Change color by itself |
|
Acetylene, Ethylene, Hexane |
No effect |
No discoloration |
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Alcohols, Ketones, Esters |
No effect |
No discoloration |
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Aromatics |
Plus error |
Produces brown color |
| Other substance measurable with this detector tube |
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Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
|
Xylene |
4,2,1 |
1,2,4 |
2 to 200ppm |
| Calibration Scale | |
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Ethyl Benzene Conc. (ppm) |
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Calibration Scale |
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Cumene Concentration (ppm) |
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| Calibration Scale | |
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Diethyl Benzene Conc. (ppm) |
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| Calibration gas generation | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 50ppm | - | 1.4 to 6.7% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Brown
I2
