User Manual
65
III
5.
with detergent or acid, as with the pH glass.
C. Free Chlorine
1. Free Chlorine as an Indicator
concentrations of which are directly dependent on pH.
and ammonia).
2. Free Chlorine Units
a pH of 5-9 in water sanitized by chlorine only.
concentrations that is wider than the range of a colorimetric test kit.