二氧化碳检测管2D Carbon dioxide CO2
产品简介
详细信息
二氧化碳检测管2D Carbon dioxide CO2的详细介绍
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-S | Explosive range |
| 5000 ppm | 30000ppm | - |