| Butane | C4H10 | NO.104 | |
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| Performance |
|
Measuring Range |
25 to 1400 ppm |
|
Number of Pump Strokes |
1 |
|
Correction Factor |
1 |
|
Sampling Time |
4 minutes per pump stroke |
|
Detecting Limit |
5 ppm (n=1) |
|
Color Change |
Orange |
|
Reaction Principle |
Butane reduces chromic acid to form chromic sulfate, |
| Coefficient of Variation | 10% (for 25 to 400 ppm), 5% (for 400 to 1400 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 |
|
Organic solvents |
- |
Plus error |
Dark green |
| Other substance measurable with this detector tube |
|
Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
|
Isobutane |
Factor : 2.2 |
1 |
55 to 3080 ppm |
|
Pentane |
Factor : 1.2 |
1 |
30 to 1680 ppm |
| Calibration gas generation | Static gas dilution method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 800ppm | - | 1.6 to 8.5% |
|
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Dark Green
Cr2(SO4)3