| Carbon dioxide | CO2 | NO.2HH |
|
|
||
| Performance |
|
Measuring Range |
2.5 to 5% |
5 to 40% |
|
Number of Pump Strokes |
1 |
1/2 (50 ml) |
|
Correction Factor |
1/2 |
1 |
|
Sampling Time |
30 seconds. for 1/2 pump stroke(50ml) |
|
|
Detecting Limit |
0.5% (n=1) |
|
|
Color Change |
White |
|
|
Reaction Principle |
Carbon dioxide reacts with detecting agent to give indicator to purple. |
|
| Coefficient of Variation | 10% (for 5 to 10 %), 5% (for 10 to 40 %) | |
| 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 |
|
Chlorine |
- |
No effect |
No discoloration |
|
Hydrogen sulfide |
- |
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