Hach POCKET COLORIMETER II Instruction Manual page 22

Chlorine, Free and Total, LR,
7.
For free chlorine, place
the prepared sample in the
cell holder. Cover the ampule
with the instrument cap and
proceed to step 9 within one
minute after filling the
AccuVac Ampul.
Wipe liquid off the
Note:
AccuVac Ampul.
If the sample temporarily turns yellow after reagent addition, or if the display shows
Note:
overrange (page 2—12) dilute a fresh sample and repeat the test. A slight loss of chlorine may
occur because of the dilution. Multiply the result by the appropriate dilution factor.
continued
8.
For total chlorine, insert
the ampule into the cell
holder, then cover with the
instrument cap. Wait three
to six minutes after filling
the AccuVac Ampul. Proceed
to step 9.
Wipe liquid off the
Note:
AccuVac Ampul.
1—22
9.
Press
READ/ENTER
instrument will show
- - - - followed by the results
in mg/L chlorine.
. The