Hach DR/700 Procedures Manual page 593

Colorimeter
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MOLYBDENUM, MOLYBDATE, LR
10.
Place the blank
in the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
13.
Press:
READ
The display will
count down to 0.
Then the display will
show the results in
mg/L molybdenum.
Note: To convert results
to other units see Table 1.
11.
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.
Table 1. Conversion Factors
To convert reading from
mg/L hexavalent
molybdenum (Mo
6+
)
mg/L hexavalent
molybdenum (Mo
6+
)
61-37
continued
12.
Place the
developed sample in
the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
To
Multiply by
mg/L molybdate
(MoO
2-
)
4
mg/L sodium
molybdate (Na
MoO
)
2
4
1.67
2.15

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