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产品[
丙烯腈气体检测管191L Acrylonitrile[产品打印页面]
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产品名称:
丙烯腈气体检测管191L Acrylonitrile
产品型号:
191L
产品展商:
GASTEC
简单介绍
丙烯腈气体检测管191L Acrylonitrile CH2:CHCN，Measuring Range 0.1 to 0.2ppm 0.2 to 6.0 ppm 6.0 to 18.0 ppm Number of Pump Stroke 4 2 1 Correction Factor，丙烯腈气体检测管价格
丙烯腈气体检测管191L Acrylonitrile的详细介绍
丙烯腈气体检测管191L Acrylonitrile
Acrylonitrile No.191LCH2:CHCN MeasuringRange | 0.1 to 0.2ppm | 0.2 to 6.0 ppm | 6.0 to 18.0ppm | Number of PumpStroke | 4 | 2 | 1 | CorrectionFactor | 1/2 | 1 | 3 | Sampling Time | 3 minutes per pumpstroke | Detecting Limit | 0.05 ppm (n=4) | Color Change | Yellow → Pink | Reaction Principle | Pretreatmenttube: CH2:CHCN + Cr6+ +H2SO4 →HCN
Detector tube : 2HCN +HgCl2 → 2HCl + Hg(CN)2
HCl + Base → Chloride | | Coefficient ofVariation | 10% (for 0.25 to 1ppm), 5% (for 1 to 6 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 | Hydrogenchloride | - | No effect | Nodiscoloration | Hydrogencyanide | - | No effect | Nodiscoloration | Nitriles( C3) | - | Plus error | Discolor pinkstain | Acetonecyanohidrin | - | Plus error | Discolor pinkstain | Alcohols, Esters,Ketones | - | No effect | Nodiscoloration | Aromatichydrocarbons | - | No effect | Nodiscoloration |
| Othersubstance measurable with this detector tube |
Substance | CorrectionFactor | No. of PumpStrokes | MeasuringRange | n-Butyronitrile | 30 | 1 | 6 to 180 ppm | 2-Methyl-3-butenenitrile | 2.0 | 2 | 0.4 to 12 ppm | 2-Pentenenitrile | 1.2 | 2 | 0.24 to 7.2ppm | 3-Pentenenitrile | 2.0 | 2 | 0.4 to 12ppm |
| Calibration gasgeneration | Diffusion tubemethod |
| TLV-TWA | TLV-STEL | Explosive range | | 2ppm | - | 3 to17% |
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