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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 | 0.1 to 30 ppm |
| Sampling Hours | 1 to 10 hours |
| Detecting Limit | 0.05 ppm （10hours） |
| Color Change | White→ Yellow |
| Reaction Principle | NO2 + o-Toluidine → Yellowproduct |
| Coefficient ofVariation | 10%（for 1 to 30 ppm-hr） |
| ShelfLife | 1 Year |
| Correctionsfor temperature & humidity | Temperature correction isnecessary |
| Store the tubes inthe refrigerator to keep at 10ºC （50ºF） orbelow. | |
| Possible coexisting substances and theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Bromine,Chlorine | - | Yellow | |
| Ammonia Carbon monoxide Nitric oxide sulphur dioxide Organic gases and vapour |
| No | No |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 3 ppm | 5 ppm | - |