76
8.19. 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 page 87.
MEASUREMENT PROCEDURE
• Select the
Phosphate LR
method using the procedure
described in the Method Selection section (see page 17).
• Rinse, cap and shake the cuvette several times with
unreacted sample.
• Fill the cuvette with 10 mL of 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 and add the content of one packet
of
HI93713‑0
Phosphate Low Range Reagent. Replace
the cap and shake gently (for about 2 minutes) until
the powder is completely dissolved.
10 mL
PHOSPHA
TE LOW RANGE