Indicator: 100-2000 ppm
Measuring Range:
+ 100-2000 ppm, Number of Pump Strokes 1
+ 2000-4000 ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minutes per pump stroke
Colour Change: Pale red → yeallow
Reaction Principle:CO2 + 2KOH →K2CO3 + H2O
Coefficient of Variation: 10% (100 ~ 600 ppm), 5% (600 ~ 2000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Detail
Performance
Measuring Range | 300 to 5000 ppm |
Number of Pump Strokes | 300 to 5000 ppm (n=1) |
Correction Factor | 1 |
Sampling Time | 1.5 minutes per pump stroke |
Detecting Limit | 30 ppm (n=1) |
Colour Change | Pale blue → Purple |
Reaction Principle | CO2 + N2H4 → NH2NHCOOH |
Coefficient of Variation | 10% (for 300 to 1000 ppm), 5% (for 1000 to 5000 ppm) |
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 colour by itself to |
Ammonia | No | No | |
Carbon Monoxide | No | No | |
Chlorine | No | No | |
Hydrogen chloride | No | No | |
Nitrogen oxides | No | No | |
sulphur dioxide | No | No | |
Amines | No | No | |
Organic solvents | No | No |
Calibration gas generation | High pressure gas cylinder method |
TLV-TWA | TLV-STEL | Explosive range |
5000 ppm(2014) | 30000 ppm(2014) | - |
- 质量承诺
- 正品保修
- 送货到家
- 交易简单化