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甲基硫醇检测管71
点击次数：180发布时间：2012/3/20 10:39:30
更新日期：2012/9/21 14:20:44
所 在 地：其它
产品型号：71
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简单介绍
甲基硫醇检测管71 Methyl mercaptan，Measuring Range 0.25 to 2.5 ppm 2.5 to 70 ppm 70 to 140 ppm，可检测的气体包括二氧化碳、氧气、氢气、臭氧、一氧化氮、氯乙烯、肼、二氧化氯、甲烷、乙烷、一氧化碳、氨气、、二氧化氮、二氧化硫、氟化氢、硫化氢、氯化氢、、光气、磷化氢、氰化氢、甲苯等
甲基硫醇检测管71 Methyl mercaptan
的详细介绍甲基硫醇检测管71 Methyl mercaptan
Methyl mercaptan No.71
CH3SH
| Performance |
| MeasuringRange | 0.25 to 2.5ppm | 2.5 to 70 ppm | 70 to 140 ppm | |
| Number of PumpStrokes | 2 to 10 | 1 | 1/2 | |
| CorrectionFactor | 1/2 to 1/10 | 1 | 2 | |
| SamplingTime | 2 minutes per pumpstroke | |||
| DetectingLimit | 0.1 ppm （n=10） | |||
| ColorChange | White → Yellow | |||
| ReactionPrinciple | 2CH3SH + PdSO4 → （CH3S）2Pd + H2SO4 | |||
| Coefficient ofVariation | 10% （for 2.5 to 20ppm）, 5% （for 20 to 70 ppm） | |||
| ShelfLife | 3Years | |||
| Correctionsfor temperature & humidity | Temperature correction is necessary | |||
| Store the tubes at cool ａnd darkplace. | ||||
| Possible coexisting substances ａnd theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Acetylene,Ethylene | 2000 ppm | Plus error | Discolor palebrown |
| CarbonMonoxide | 2000 ppm | Plus error | Discolor palebrown |
| OtherMercaptans | - | Plus error | Discolor yellowstain |
| HydrogenSulfide | 500 ppm | No effect | Nostain |
| Othersubstance measurable with this detector tube |
| Substance | CorrectionFactor | PumpStroke | MeasuringRange |
| Styrene | 1.5 | 1 | 0.075 to0.9% |
| Calibration gasgeneration | Permeation tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.5ppm | - | 3.9to 21.8% |
