Chlorine Dioxide

NO.23L
ClO2
Performance
Measuring Range
0.25 to 0.05 ppm (0.05) to 0.6 ppm 0.6 to 1.2 ppm
Number of Pump Strokes
2 1 1/2
Correction Factor
1/2 1 2
Sampling Time 2 minute per pump stroke
Detecting Limit 0.005 ppm (n=2)
Colour Change White → Pale Green
Reaction Principle Chlorine dioxide oxidises the indicatorto produce pale green discolouration.
Coefficient of Variation 10% (for 0.05 to 0.2 ppm), 5% (for 0.2 to 0.6 ppm)
Shelf Life 1 Year
Corrections for temperature & humidity Unnecessary
Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Ammonia   No No
Carbon monoxide, Carbon dioxide   No No
Hydrogen chloride   No No
sulphur dioxide   No No
Nitrogen dioxide   + Pale green
Halogen gases   + Pale green
Hydrogen sulphide   No No
Organic vapours   No No
Calibration gas generation Permeation tube method
TLV-TWA TLV-STEL Explosive range
0.1 ppm 0.3 ppm -


Return to previous viewGo to top of page