| Carbon dioxide | CO2 | NO.2L |
|
|
||
| Performance |
|
Measuring Range |
0.13 to 0.25% |
0.25 to3% |
3 to 6% |
|
Numberof Pump Strokes |
2 |
1 |
1/2 |
|
Correction Factor |
1/2 |
1 |
2 |
|
Sampling Time |
2 minutes per pump stroke |
||
|
Detecting Limit |
0.025% (n=2) |
||
|
Color Change |
White |
||
|
Reaction Principle |
Carbon dioxide reacts with detecting agent to give indicator to purple. |
||
| Coefficient of Variation |
10% (for 0.25 to 1 %), 5% (for 1 to 3 %) |
||
| 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 |
|
Ammonia |
- |
No effect |
No discoloration |
|
Carbon Monoxide |
- |
No effect |
No discoloration |
|
Hydrogen chloride, |
- |
No effect |
No discoloration |
|
Nitrogen oxides |
- |
No effect |
No discoloration |
|
Sulfur dioxide |
- |
No effect |
No discoloration |
|
Amines |
- |
No effect |
No discoloration |
|
Organic solvents |
- |
No effect |
No discoloration |
| Calibration gas generation | High pressure gas cylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 5000ppm | 30000ppm | - |
|
|
| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Purple