Hach DR/700 - Page 417

52-91
Method 8034
MANGANESE, HR (0 to 20.0 mg/L)
For water and wastewater
Periodate Oxidation Method*; USEPA approved for reporting†
Digestion is required; see Section 1.
1. Install module
number
52.01
in a DR/700.
Note: If samples cannot
be analyzed
immediately, see
Sampling and Storage
following these steps.
Adjust the pH of stored
samples before analysis.
2. Press: I/O
The display will show
525 nm
and module number
52.01
Note: Total manganese
determination requires
prior digestion; use
either the Digesdahl or
mild digestion (Section 1).
3. After 2 seconds,
the display will show
a program number,
the concentration
units, decimal
position and the zero
prompt. If necessary,
press the
UP ARROW
key until the lower
display shows
program number
52.13.1
*Adapted from Standard Methods for the Examination for Water and Wastewater
†Federal Register, June 14, 1979 44(116), 34193.