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Indicator: 5~40%
Measuring Range:
+ 2.5 to 5%, Number of Pump Strokes 1
+ 5 to 40%, Number of Pump Strokes 1/2
Sampling Time: 45 seconds
Colour Change: Orange → Yellow
Reaction Principle: CO2 + 2KOH → K2CO3 + H2O
Coefficient of Variation: 10% (for 5 to 10 %), 5% (for 10 to 40 %)
Nr. of tests: 10
Pump: GV-100S/110S
| Measuring Range |
|
||
| Number of Pump Strokes |
|
||
| Correction Factor |
|
||
| Sampling Time | 45 seconds | ||
| Detecting Limit | 0.04% (n=1) | ||
| Colour Change | Orange → Yellow | ||
| Reaction Principle | CO2 + 2KOH → K2CO3 + H2O | ||
| 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. | |||
| Substance | Concentration | Interference | Change colour by itself to |
| Ammonia |  8% |
No | No |
| Carbon monoxide | No | No | |
| Hydrogen chloride | 3% |
No | White (  4000 ppm) |
| Chlorine | 1% |
No | White ( 1000 ppm) |
| Nitrogen dioxides | 1/5 |
No | Pale yellow ( 50 ppm) |
| Sulphur dioxide | 2% |
No | Pale yellow ( 2400 ppm) |
| Ethanol | 7% |
No | Pale yellow ( 2 %) |
| Acetic acid | 2% |
No | Pale yellow ( 4500 ppm) |
| Hydrogen sulphide | 1/15 |
No | Pale yellow ( 1200 ppm) |
| Ttimethylamine | 10% |
No | No |
| Nitoric oxide | No | No | |
| Ethylene , Propane | No | No |
| Calibration gas generation | High pressure gas cylinder method |
| TLV-TWA | TLV-STEL | Explosive range |
| 5000 ppm(2014) | 30000 ppm(2014) | - |
