Hach POCKET COLORIMETER II Instruction Manual page 20

1.
Fill a 25-mL mixing
graduated cylinder with the
appropriate sample volume
from Table 1.
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Ammonia, Nitrogen,
2.
Dilute to 25 mL with
ammonia-free deionized
water. Stopper and invert
three times to mix.
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3.
Fill a 10-mL sample cell
with 10 mL of sample from
the graduated cylinder. This
will become the prepared
sample.
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continued