31
ALKALINITY
10 mL
8. METHOD PROCEDURES
8.1. ALKALINITY
SPECIFICATIONS
Range 0 to 500 mg/L (as CaCO
3
)
Resolution 1 mg/L
Accuracy ±5 mg/L ±5% of reading at 25 °C
Light Source LED with narrow band interference filter @ 610 nm
Method Colorimetric Method.
REQUIRED REAGENTS
Code Description Quantity
HI775S Alkalinity Reagent 1 mL
HI93755‑53 Chlorine Removal Reagent 1 drop
REAGENT SETS
HI775‑26 Reagents for 25 tests
For other accessories see page 87.
MEASUREMENT PROCEDURE
• Select the Alkalinity 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.
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