108
Phosphate HR
PHOSPHATE HIGH RANGE
SPECIFICATIONS
Range
0.0 to 30.0 mg/L
Resolution
0.1 mg/L
Accuracy
±1 mg/L ±4% of reading at 25 °C
Typical EMC Dev.
±0.1 mg/L
Light Source
Tungsten lamp with narrow band interference filter @ 525 nm
Method
Adaptation of the
Standard Methods for the Examination of Water and Wastewater,
18
th
edition, Amino Acid method. The reaction between phosphate and reagents
causes a blue tint in the sample.
REQUIRED REAGENTS
Code
Description
Quantity
HI 93717
A
-0
Molybdate
10 drops
HI 93717
B
-0
Reagent B
1 packet
REAGENT SETS
HI 93717-01
Reagents for 100 tests
HI 93717-03
Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the
Phosphate HR method using the procedure described
in the
Method Selection section (see page 12).
• 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.
• Remove the cuvette.
• Add 10 drops of HI 93717A-0 Molybdate reagent.
10 mL