四氯乙烯檢測133D Tetrachloroethylene，四氯乙烯檢測管133D Tetrachloroethylene Cl2C:CCl2，Measuring Range 3 to 150 ppm Sampling Hours 1 to 8 hours Color Change，四氯乙烯氣體檢測管價格
四氯乙烯檢測管133D Tetrachloroethylene的詳細介紹
四氯乙烯檢測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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