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METHOD PROCEDURES
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PHOSPHA
TE LOW RANGE
10.14. PHOSPHATE LOW RANGE
SPECIFICATIONS
Range
0.00 to 2.50 mg/L (as PO
4
3-
)
Resolution
0.01 mg/L
Accuracy
±0.04 mg/L ±4% of reading at 25 °C
Light Source
LED with narrow band interference filter @ 610 nm
Method
Adaptation of the Ascorbic Acid Method
REQUIRED REAGENTS
Code Description
Quantity
HI93713-0
Phosphate Low Range Reagent
1 packet
REAGENT SETS
HI93713-01
Reagents for 100 tests
HI93713-03
Reagents for 300 tests
For other accessories see ACCESSORIES section.
MEASUREMENT PROCEDURE
• Select the
Phosphate LR
method using the procedure described in the METHOD SELECTION section.
• Rinseand replace the plastic stopper and the cap. Shake
the cuvette several times with unreacted sample.
• Fill the cuvette with 10 mL of sample (up to the mark).
Replace the plastic stopper and the cap.
• Insert the cuvette into the holder and close the lid.
• Press
Zero
. The display will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the cuvette and add the content of one packet
of
HI93713-0
Phosphate Low Range Reagent. Replace
the plastic stopper and the cap. Shake gently (for about
2 minutes) until the powder is completely dissolved.
10 mL