品牌
生产厂家厂商性质
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
面议二氧化碳检测管2D Carbon dioxide CO2
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 | 1.04 to 2000ppm |
| Sampling Hours | 0.5 to 48hours |
| Detecting Limit | 2 ppm （10hours） |
| Color Change | Pale Yellow →Brown |
| Reaction Principle | CO +Na2Pd（SO3）2 → Pd + CO2 + SO2 + Na2SO3 |
| Coefficient ofVariation | 10%（for 50 to 1000 ppm-hr） |
| ShelfLife | 2 Year |
| Correctionsfor temperature & humidity | Unnecessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself to |
| Nitrogendioxide | 5 ppm | - | No |
| Chlorine | - | No | No |
| Hydrogensulphide | - | + | Reddishbrown |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 25 ppm | - | 12.5to 74% |