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关 键 词：三氯乙烯检测管
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发布时间：2010-12-20
Trichloroethylene No.132D Cl2C:CHCl Performance Measuring Range 3 to 300 ppm Sampling Hours 1 to 8 hours Detecting Limit Color Change Yellow → Purple Reaction Principle Cl2C:CHCl + PbO2 + H2SO4 → HCl HCl + Base → Chloride Coefficient of Variation 10% (for 25 to 300 ppm-hr) Shelf Life 1 Year Corrections for temperature & humidity Temperature correction is necessary Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. Possible coexisting substances and their interferences (NOTE) Substance Concentration Interference Change color by itself Hydrogen chloride, Chlorine + Purple 1,2-Dichloroethylene, Tetrachloroethylene + Purple Toluene, Xylene No No Other substance measurable with this detector tube Substance Correction Factor Sampling Time Measuring Range trans-1,2-Dichloroethylene 2.0 1 to 8 hours 6 to 600 ppm Chlorine 0.8 1 to 8 hours 2.4 to 240 ppm Hydrogen chloride 0.6 1 to 8 hours 1.8 to 180 ppm Tetrachloroethylene 0.5 1 to 8 hours 1.5 to 150 ppm Calibration gas generation Diffusion tube method TLV-TWA TLV-STEL Explosive range 10 ppm 25 ppm -
