Carbon monoxiide |
NO.1LC |
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Measuring Range | 1 to 30 ppm |
Number of Pump Strokes | 1 |
Correction Factor | 1 |
Sampling Time | 4 minutes per pump stroke |
Detecting Limit | 0.5 ppm (n=1) |
Colour Change | White → Pale Pink |
Reaction Principle | CO + Paradium Salt (White) → Pale pink product |
Coefficient of Variation | 10% (for 1 to 10 ppm), 5% (for 10 to 30 ppm) |
Shelf Life | 2 Years |
Corrections for temperature & humidity | Temperature correction is necessary |
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Change colour by itself to |
Ammonia | No | No | |
sulphur dioxide | 1/20 time | ![]() |
No |
Nitrogen dioxide | 1/20 time | + | No |
Calibration gas generation | High pressure gas cylinder method |
TLV-TWA | TLV-STEL | Explosive range |
25 ppm | - | 12.5 to 74% |