Trace2O AquaSafe WSL50, Instruction Manual, Page: 52 / 52

Total Chlorine – Choose the closest colour match between the colour of the test sample in
chamber 4 , and the coloured overlays on chambers 3 and 5 . Record the result.
Combined Chlorine mg/L (ppm) = Total Chlorine mg/L – Free Chlorine mg/L
Notes:
Take care not to over shake or aerate the sample.
Store the reagents in a cool, dry place.
Turbid samples should be filtered prior to analysis for best colour match.