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关 键 词：SO2检测管
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发布时间：2010-12-20
sulphur dioxide No.5D SO2 Performance Measuring Range 0.2 to 100 ppm Sampling Hours 1 to 10 hours Detecting Limit 0.1 ppm (10 hours) Color Change Green → Yellow Reaction Principle SO2 + BaCl2 + H2O 仺 BaSO3 + 2HCl HCl + Base 仺 Chloride Coefficient of Variation 10% (for 2 to 10 ppm-hr),5% (for 10 to 100 ppm-hr) Shelf Life 3 Year Corrections for temperature & humidity Unnecessary Store the tubes at cool and dark place. Possible coexisting substances and their interferences (NOTE) Substance Concentration Interference Change color by itself Nitrogen dioxide - No Hydrogen sulphide + No Calibration gas generation Diffusion tube method TLV-TWA TLV-STEL Explosive range 2 ppm 5 ppm -
