Gastec 126 Quick-measuring Detector tubes Chlorobenzene C6H5Cl (2~500ppm)

Indicator: 10 to 200 ppm
Measuring Range: 
+ 2 to 5 ppm, Number of Pump Strokes 2
+ 5 to 200 ppm, Number of Pump Strokes 1
+ 200 to 500 ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Gray
Reaction Principle: C6H5Cl+ I2O5 + H2S2O7 → I2
Coefficient of Variation: 15% (for 5 to 50 ppm), 10% (for 50 to 200 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
2 to 5 ppm 5 to 200 ppm 200 to 500 ppm
Number of Pump Strokes
2 1 1/2
Correction Factor
0.4 1 2.5
Sampling Time
1.5 minutes per pump stroke 1 minute
Detecting Limit 0.2 ppm (n=2)
Colour Change White → Gray
Reaction Principle C6H5Cl+ I2O5 + H2S2O7 → I2
Coefficient of Variation 15% (for 5 to 50 ppm), 10% (for 50 to 200 ppm)
Shelf Life 3 Years
Corrections for temperature & humidity Unnecessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Carbon monoxide 0.1% No (2 layers) Pale brown (whole layer)
Acetylene, Hexane, Ethylene 0.2% No (2 layers) Pale brown (whole layer)
Alcohols, Ketones 1% + No
Esters 0.2% + No
Aromatic hydrocarbons   + Gray
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
10 ppm(2014) - 1.3 to 9.6%

 

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