Hach DR/700 - Page 277

50-27
NITRATE, HR, continued
7. Set the cell down
and wait 5 minutes.
Note: Do not wait more
then 15 minutes before
completing Steps 8-12.
8. Fill a 10-mL cell
to the 10-mL line
with sample (the
blank).
9. Place the blank in
the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
5 minutes