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简单介绍：
二氧化碳检测管2D Carbon dioxide CO2，Measuring Range 0.02 to 12% Sampling Hours 0.5 to 10 hours Detecting Limit 0.02 ppm (12 hours) Color Change Pale Red → Yellow Reaction Principle二氧化碳检测管价格
详情介绍：
二氧化碳检测管2D Carbon dioxide CO2
Carbon dioxide No.2D
CO2
| Performance |
Measuring Range | 0.02 to 12% |
Sampling Hours | 0.5 to 10hours |
Detecting Limit | 0.02 ppm (12hours) |
Color Change | Pale Red →Yellow |
Reaction Principle | CO2 + 2KOH → K2CO3 + H2O |
| Coefficient ofVariation | 10%(for 0.2 to 8 %-hr) |
| ShelfLife | 2 Year |
| Correctionsfor temperature & humidity | Temperature correction isnecessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself to |
Ammonia | 500 ppm | No | No discoloration upto 500ppm |
Hydrogenchloride | 300 ppm | No | No discoloration upto 300ppm |
Chlorine | 10 ppm | No | No discoloration upto 5ppm |
Hydrogencyanide | 50 ppm | No | No discoloration upto 30ppm |
Sulfurdioxide | 15 ppm | No | No discoloration upto 15ppm |
Nitrogendioxide | 10 ppm | No | No discoloration upto 10 ppm |
Hydrogensulfide | 50 ppm | No | No discoloration upto 30 ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 5000 ppm | 30000ppm | - |