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- 1,3 -丁二烯174D 1,3-Butadiene CH2:CHCH:CH2，Measuring Range 1.3 to 200 ppm Sampling Hours 1 to 8 hours Detecting Limit 1.3 ppm (8 hours)1,3-丁二烯價格，1,3 -丁二烯檢測管174D 1,3-Butadiene 1,3 -丁二烯檢測管174D 1,3-Butadiene的詳細(xì)介紹 1,3 -丁二烯檢測管174D 1,3-Butadiene 1,3-Butadiene No.174D CH2:CHCH:CH2 Performance Measuring Range 1.3 to 200 ppm Sampling Hours 1 to 8 hours Detecting Limit 1.3 ppm (8hours) Color Change Reddish purple → Palebrown Reaction Principle CH2:CHCH:CH2 + MnO4 仺 Pale brown product Coefficient ofVariation 10%(for 10 to 200 ppmr) ShelfLife 2 Year Correctionsfor temperature & humidity Temperature correction isnecessary Store the tubes atcool and dark place. Possible coexisting substances and theirinterferences (NOTE) Substance Interference Change colour byitself to Unsaturatedhydrocarbons + Palebrown Othersubstance measurable with this detectortube Substance CorrectionFactor SamplingTime MeasuringRange Ethylene Factor: 1.2 1 to 10 1.5 to240 ppm Vinylchloride Factor: 1.2 1 to 10 1.5 to240 ppm Isoprene Factor: 2.0 1 to 10 2.5 to 400 ppm Trans-1,2-Dichloroethylene Factor: 3.0 1 to 10 3.8 to 600ppm Calibration gasgeneration Diffusion tubemethod TLV-TWA TLV-STEL Explosive range 2 ppm - 2.0to 12%
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