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PHOSPHORUS, REACTIVE,
7.
Fill a 10-mL cell
to the 10-mL line
with sample (the
blank).
10.
Place the
prepared sample in
the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
Table 1. Conversion Factors
To convert reading from
mg/L PO
4
mg/L PO
4
8.
Place the blank in
the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
11.
Press:
READ
The display will
count down to 0.
Then the display will
show the results in
mg/L phosphate
(as PO
).
4
Note: To convert results
to other units, see Table 1.
To
Multiply by
mg/L P
O
0.747
2
5
mg/L P
0.326
81-49
continued
9.
Press:
ZERO
The display will
count down to 0
Then the display will
show 0.00 mg/L, and
the zero prompt will
turn off.
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