78
8.20. PHOSPHATE HIGH RANGE
SPECIFICATIONS
Range
0.0 to 30.0 mg/L (as PO
4
3‑
)
Resolution
0.1 mg/L
Accuracy
±1.0 mg/L ±4% of reading at 25 °C
Light Source
LED with narrow band interference filter @ 525 nm
Method
Adaptation of the Standard Methods for the Examination of Water and
Wastewater, 18th edition, Amino Acid method.
REQUIRED REAGENTS
Code
Description Quantity
HI93717A‑0
Phosphate High Range Reagent A
10 drops
HI93717B‑0
Phosphate High Range Reagent B
1 packet
REAGENT SETS
HI93717‑01
Reagents for 100 tests
HI93717‑03
Reagents for 300 tests
For other accessories see page 87.
MEASUREMENT PROCEDURE
• Select the
Phosphate HR
method using the
procedure described in the Method Selection
section (see page 17).
• Fill the cuvette with 10 mL of unreacted sample
(up to the mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the
Zero
key. The display will show “‑0.0‑” when the meter is zeroed and ready for measurement.
• Add 10 drops of
HI93717A‑0
Phosphate High Range Reagent A.
10 mL
PHOSPHA
TE HIGH RANGE