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2-戊烯腈检测管193
点击次数：197发布时间：2012/3/20 10:19:39
更新日期：2012/9/21 14:20:55
所 在 地：其它
产品型号：193
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详细内容
简单介绍
2-戊烯腈检测管193 2-Pentenenitrile CH3CH2CH:CHCN，Measuring Range 0.5 to 6.0 ppm 6.0 to 15 ppm，目前常用的有检测氨气、有机磷农药、一氧化碳、光气、、硫化氢、甲醛、乙醛、二氧化氮、次氯酸、过氧化氢等的试纸
2-戊烯腈检测管193 2-Pentenenitrile
的详细介绍2-戊烯腈检测管193 2-Pentenenitrile
2-Pentenenitrile No.193
CH3CH2CH:CHCN
| Performance |
| MeasuringRange | 0.5 to 6.0 ppm | 6.0 to 15 ppm |
| Number of Pump Strokes | 4 | 2 |
| Correction Factor | 1 | 2.5 |
| SamplingTime | 3 minutes per pumpstroke | |
| DetectingLimit | 0.1 ppm（n=4） | |
| ColorChange | Yellow→ Red | |
| ReactionPrinciple | CH3CH2CH:CHCN + Cr6+ + H2SO4 → HCN 2HCN+HgCl2 → 2HCl+ Hg（CN）2 HCl+Base 仺 Chloride. | |
| Coefficient of Variation | 10% （for 0.5 to 2 ppm）, 5% （for 2 to 6 ppm） | |
| Shelf Life | 3 Years | |
| Corrections for temperature & humidity | Temperaturecorrection is necessary | |
| Store the tubes at cool ａnd darkplace. | ||
| Possible coexisting substances ａnd theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Hydrogenchloride | - | No effect | Nodiscoloration |
| Hydrogencyanide | - | No effect | Nodiscoloration |
| Nitriles（ | - | Plus error | Discolor redstain |
| Acetonecyanohidrin | - | Plus error | Discolors redstain |
| Alcohols, Esters,Ketones | 20 ppm orhigher | Minus error | Nodiscoloration |
| Aromatichydrocarbons | 20 ppm orhigher | Minus error | Nodiscoloration |
C3）Note: Humidity scrubber removes humidity ａnd acid gases.
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | - |
