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甲硫醇检测管71H
点击次数：226发布时间：2012/3/20 11:13:47
更新日期：2012/9/21 14:20:27
所 在 地：其它
产品型号：71H
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简单介绍
甲硫醇检测管71H Methyl mercaptan，甲硫醇检测管71H Methyl mercaptan CH3SH，Measuring Range 20 to 50 ppm 50 to 1000 ppm 1000 to 2700 ppm Number of Pump Strokes 2 1 1/2 Correction Factor
甲硫醇检测管71H Methyl mercaptan
的详细介绍甲硫醇检测管71H Methyl mercaptan
Methyl mercaptan No.71H
CH3SH
| Performance |
| MeasuringRange | 20 to 50 ppm | 50 to 1000 ppm | 1000 to 2700ppm | ||
| Number of PumpStrokes | 2 | 1 | 1/2 | ||
| CorrectionFactor | 0.4 | 1 | 2.7 | ||
| SamplingTime | 1 minute per pump stroke | ||||
| DetectingLimit | 2 ppm （n=2） | ||||
| ColorChange | White → Yellow | ||||
| ReactionPrinciple | 2CH3SH + PdSO4 → （CH3S）2Pd + H2SO4 | ||||
| Coefficient ofVariation | 10% （for 50 to 200ppm）, 5% （for 200 to 1000 ppm） | ||||
| ShelfLife | 3Years | ||||
| Correctionsfor temperature & humidity | Unnecessary | ||||
| Store the tubes at cool ａnd darkplace. | |||||
| Possible coexisting substances ａnd theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Carbonmonoxide | - | No effect | Nodiscoloration |
| Nitrogendioxide | - | No effect | Nodiscoloration |
| Hydrogensulfide | 1000 ppm | Plus error | Nodiscoloration |
| Ethylene | - | No effect | Nodiscoloration |
| Mercaptans | - | Plus error | Discolors yellowstain |
| Othersubstance measurable with this detector tube |
| Substance | CorrectionFactor | PumpStrokes | MeasuringRange |
| Ethylmercaptan | by scale | 1 | 100to 3800ppm |
| Calibration gasgeneration | Static gas dilutionmethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.5ppm | - | 3.9to 21.8% |
