| 1,3-Butadiene | CH2:CHCH:CH2 | NO.174LL | |
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| Performance |
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Measuring Range |
0.5 to 5 ppm |
|
Number of Pump Strokes |
1 |
|
Correction Factor |
1 |
|
Sampling Time |
3 minutes per pump stroke |
|
Detecting Limit |
0.1 ppm (n=1) |
|
Color Change |
Pink |
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Reaction Principle |
CH2:CHCH:CH2+ KMnO4 |
| Coefficient of Variation | 10% (for 0.05 to 1 ppm-hr), 5% (for 2 to 5 ppm-hr) |
| Shelf Life | 3 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) |
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Substance |
Concentration |
Interference |
Change color by itself |
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Ammonia |
- |
No effect |
No discoloration |
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CO & CO2 |
- |
No effect |
No discoloration |
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H2S, HCN |
- |
No effect |
No discoloration |
|
Acetylene |
50 ppmr |
Plus error |
Discolors to white |
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Olefins |
- |
Plus error |
Discolors pale yellow |
| Calibration gas generation | Permeation tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 2ppm | - | 2.0 to 12% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Pale Yellow
Reaction Product