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Gastec 13L Quick-measuring Detector tubes Carbon disulphide CS2 (0.1~8.1ppm)

Indicator: 0.1 ~ 3.0 ppm
Measuring Range: 
+ 0.1 ~ 3.0 ppm, Number of Pump Strokes 2
+ 3.0 ~ 8.1 ppm, Number of Pump Strokes 1
Sampling Time: 3 minutes per pump stroke
Colour Change: Bluish purple → White 
Reaction Principle: CS2 + CrO3 + H2S2O7 → SO2 + CO2, CS2 + CrO3 + H2S2O7 → SO2 + CO2
Coefficient of Variation: 10% (for 0.1 to 1.0 ppm), 5% (for 1.0 to 3.0 ppm)
Nr. of tests: 5
Pump: GV-100S/110S

Details

Catalog

Manual

Performance
Measuring Range
0.1 to 3.0 ppm

3.0 to 8.1 ppm

Number of Pump Strokes
2 1
Correction Factor
1 2.7
Sampling Time 3 minutes per pump stroke
Detecting Limit 0.05 ppm (n=2)
Colour Change Bluish purple → White
Reaction Principle CS2 + CrO3 + H2S2O7 → SO2 + CO2
SO2 + I2 + H2O → HI + H2SO4
Coefficient of Variation 10% (for 0.1 to 1.0 ppm), 5% (for 1.0 to 3.0 ppm)
Shelf Life 2 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Chloroform 150ppm + White
Carbon tetrachloride 50ppm + White
o-Dichlorobenzene 20ppm No(20ppm)
Dichloromethane 100ppm + White
Tetrachloroethylene 80ppm + White
Trichloroethylene 10ppm + White
Hydrogen sulphide 50ppm + No(50ppm)
Acetone 750ppn No No
Ethyl acetate 200ppm No No
Toluene 40ppm No No
n-Hexane 100ppm No No
Methanol 300 ppm No No
Methyl ethyl ketone 250ppm No No
Calibration gas generation Permeation tube method
TLV-TWA TLV-STEL Explosive range
1 ppm(2014) - 1.3 to 50%

 

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