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四氯乙烯檢測(cè)133D

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    • 四氯乙烯檢測(cè)133D Tetrachloroethylene，四氯乙烯檢測(cè)管133D Tetrachloroethylene Cl2C:CCl2，Measuring Range 3 to 150 ppm Sampling Hours 1 to 8 hours Color Change，四氯乙烯氣體檢測(cè)管價(jià)格 四氯乙烯檢測(cè)管133D Tetrachloroethylene的詳細(xì)介紹 四氯乙烯檢測(cè)133D Tetrachloroethylene Tetrachloroethylene No.133D Cl2C:CCl2 Performance Measuring Range 3 to 150 ppm Sampling Hours 1 to 8 hours Color Change Yellow → Purple Reaction Principle Cl2CCl2+ PbO2 + H2SO4 → HCl HCl + Base → Chloride Coefficient ofVariation 15%(for 25 to 50 ppm-hr), 10% (for 50 to 150 ppm-hr) ShelfLife 1 Year Correctionsfor temperature & humidity Temperature correction isnecessary Store the tubes inthe refrigerator to keep at 10ºC (50ºF) orbelow. Possible coexisting substances and theirinterferences (NOTE) Substance Interference Change color by itself Hydrogen chloride,Chlorine - Purple 1,2-Dichloroethylene,Trichloroethylene + Purple Toluene, Xylene No No Calibration gasgeneration Diffusion tubemethod TLV-TWA TLV-STEL Explosive range 25 ppm 100 ppm -

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