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一氧化碳气体检测管1LM Carbon monoxide 的详细介绍 一氧化碳气体检测管1LM Carbon monoxide Carbonmonoxide No.1LMCO Performance MeasuringRange 25to 50 ppm 50 to 1000 ppm 1000 to 2000ppm Number of Pump Strokes 2 1 1/2 CorrectionFactor 1/2 1 2 SamplingTime 3 minutes per pumpstroke DetectingLimit 5 ppm (n=2) ColorChange White → Palebrown ReactionPrinciple 5CO +I2O5 +H2S2O7 → I2 Coefficient ofVariation 10% (for 50 to 200ppm), 5% (for 200 to 1000 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 Acetylene,Olephines, Propane, Hexane - Plus error Produce similar stainby themselves. Butane - Plus error Pale Brown Hydrogen - No No
