Hach POCKET COLORIMETER II Instruction Manual page 15

Nitrogen, Free Ammonia and Chloramine (Mono),
16.
WIth the
Monochloramine sample
still in the cell holder, press
. The display
ZERO/SCROLL
will show 0.00.
Remove the sample cell from
the meter.
FA
17.
Add the contents of
one pillow of Monochlor F
to the cell for Free Ammonia
measurement.
The reaction period
Note:
indicated in step 11
13 must be completed before
the addition of Monochlor F
to the cell for free ammonia
measurement
1—15
18.
Cap and shake for 20
seconds to dissolve the
reagent.
A green color will form if
ammonia or
on page
monochloramine is present.
continued