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所在地
二氧化氮检测管9D NO2 Nitrogen dioxide
面议硫化氢检测管4D H2S Hydrogen sulphide
面议氟化氢检测管17D HF Hydrogen fluoride
面议过氧化氢检测管32D Hydrogen peroxide
面议乙醇检测管112D C2H5OH Ethanol
面议三氯乙烯检测管132D Trichloroethylene
面议三氯乙烯检测管132D Trichloroethylene Trichloroethylene
面议一氧化碳气体检测管1D CO Carbon monoxide
面议1,3 -丁二烯检测管174D 1,3-Butadiene
面议甲苯器检测管122DL C6H5CH3 Toluene
面议氨水氨气检测管3DL NH3 Ammonia
面议氨气气体检测管3D NH3 Ammonia
面议
| 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 | - |