81-47
Method 8048
PHOSPHORUS, REACTIVE
(0 to 2.50 mg/L PO
4
3-
)
For water, wastewater, seawater
(also called: Orthophosphate) PhosVer 3 (Ascorbic Acid)
Method* (Powder Pillows or AccuVac Ampuls),
USEPA accepted for reporting**
USING POWDER PILLOWS
1. Install DR/700
module
81.01
in the instrument.
2. Press: l/O
The display will show
810 nm
and module number
81.01
3. After 2 seconds,
the display will show
a program number,
concentration units,
decimal position and
the zero prompt. If
necessary, press the
UP ARROW key until
the lower display
shows program
number
81.02.1
*Adapted from Standard Methods for the Examination of Water and Wastewater.
**Procedure is equivalent to USEPA method 365.2 and Standard Method 4500-P-E for
wastewater.
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