Hach POCKET COLORIMETER II Instruction Manual page 32

Chlorine, Free and Total, HR,
• High range free chlorine determinations are subject to variable levels of
interferences from monochloramine. See Interferences on page 1—41.
Note:
The Pocket Colorimeter II is designed to measure solutions contained in sample cells.
dip the meter in the sample or pour the sample directly into the cell holder.
DO NOT
continued
1—32