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一氧化碳气体检测管1LL Carbon monoxide 的详细介绍 一氧化碳气体检测管1LL Carbon monoxide Carbonmonoxide No.1LLCO Performance MeasuringRange 5 to 50 ppm Number of PumpStrokes 2 CorrectionFactor 1 SamplingTime 2 minutes per pumpstroke DetectingLimit 1 ppm (n=2) ColorChange Yellow → Blackishbrown ReactionPrinciple CO +Na2Pd(SO3)2 → Pd + CO2 + SO2 + Na2SO3 Coefficient ofVariation 15% (for 5 to 10ppm), 10% (for 10 to 50 ppm) ShelfLife 3 Years 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 1/50 time Plus error Produces dark brownstain Sulfurdioxide 1/10 time Plus error Produces dark brownstain Nitrogendioxide 40 ppm Plus error Produces redstain Hydrogensulfide 1/5 time Plus error Produces dark brownstain
