产品分类
PRODUCT CENTER
联系我们
销售电话：时经理
18121126516
021-64835787
产品详情
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
详情介绍：
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% |