| 1,3-Butadiene | CH2:CHCH:CH2 | NO.174 | |
|
|
|||
| Performance |
|
Measuring Range |
50 to 800 ppm |
|
Number of Pump Strokes |
1 |
|
Correction Factor |
1 |
|
Sampling Time |
3 minutes per pump stroke |
|
Detecting Limit |
10 ppm (n=1) |
|
Color Change |
Pale yellow |
|
Reaction Principle |
1,3-Butadiene reacts with palladium sulfate and ammonium |
| Coefficient of Variation | 10% (for 50 to 200 ppm), 5% (for 200 to 800 ppm) |
| Shelf Life | 3 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes at cool and dark place. | |
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Acetylene, Carbon monoxide |
10 ppm |
Plus error |
Discolor to blue |
|
Ammonia, Hydrogen cyanide |
- |
Plus error |
Discolor to white |
|
Hydrogen |
20% |
Plus error |
Discolors to blue for whole layer |
|
Hydrogen sulfide |
10 ppm |
Plus error |
Discolors to black |
|
Ethylene |
1 ppm |
Plus error |
Discolors to blue |
|
Styrene |
- |
Plus error |
Discolor to pale blue |
| Other substance measurable with this detector tube |
|
Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
|
1,3-Pentadiene |
5.0 |
1 |
250 to 4000 ppm |
| Calibration gas generation | Static gas dilution method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 2ppm | - | 2.0 to 12% |
|
|
| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
White