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甲基丙烯腈检测管192 MethacrylonitrileMeasuring Range 0.2 to 0.5 ppm 0.5 to 10 ppm 10 to 32 ppm，实验室通用设备，BOD/COD测试仪，菌落计数器，超声波清洗器，测油仪，红外线加热板，滴定仪，多功能消解器，蒸馏水器，旋转蒸发仪，超纯水器，多功能测量仪，均质器，气体发生器，分光光度计，环境空气质量监测系统
详情介绍：
甲基丙烯腈检测管192 Methacrylonitrile
Methacrylonitrile No.192
CH2:C(CH3)CN
| Performance |
MeasuringRange | 0.2 to 0.5 ppm | 0.5 to10 ppm | 10 to 32 ppm |
Number of Pump Strokes | 4 | 2 | 1 |
Correction Factor | 0.4 | 1 | 3.2 |
SamplingTime | 2 minutes per pumpstroke | ||
DetectingLimit | 0.1 ppm (n=4) | ||
ColorChange | Yellow → Red | ||
ReactionPrinciple | CH2:C(CH3)CN+ Cr6+ + H2SO4 → HCN 2HCN + HgCl2 仺 2HCl+Hg(CN) 2 HCl+Base 仺 Chloride | ||
| Coefficient ofVariation | 10%(for 0.5 to 4 ppm), 5% (for 4 to 10 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 |
Nitriles( | - | Plus error | Discolors redstain |
Acetonecyanohidrin | - | Plus error | Discolors redstain |
Alcohols, Esters,Ketones | 20 ppm | Minus error | Nodiscoloration |
Aromatichydrocarbons | 20 ppm | Minus error | Nodiscoloration |
Hydrogenchloride, | - | No effect | Nodiscoloration |
C3)| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | - |