Gastec 2L Quick-measuring Detector tubes Carbon dioxide CO2 (0.13~6%)
ManufacturerGastec(View more products from this manufacturer)
Model2L
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Indicator: 0.25~3.0%
Measuring Range:
+ 0.13 to 0.25%, Number of Pump Strokes 2
+ 0.25 to3%, Number of Pump Strokes 1
+ 3 to 6%, Number of Pump Strokes 1/2
Sampling Time: 1.5 minutes per pump stroke
Colour Change: White → Purple
Reaction Principle: CO2 + N2H4 → NH2NHCOOH
Coefficient of Variation: 10% (for 0.25 to 1 %), 5% (for 1 to 3 %)
Nr. of tests: 10
Pump: GV-100S/110S
Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 1.5 minutes per pump stroke | |||
| Detecting Limit | 0.025% (n=2) | |||
| Colour Change | White → Purple | |||
| Reaction Principle | CO2 + N2H4 → NH2NHCOOH | |||
| 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 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) | - |
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