142
OXYGEN, DISSOLVED
• Let the sample stand for approximately 2 minutes to allow flocculating
agent to settle.
• When the upper half of the bottle is clear, add 10 drops of
HI93732C‑0 Dissolved Oxygen Reagent C.
• Replace the cap and invert the bottle until the settled flocculating
agent dissolves completely. The sample is ready for measurement
when it is yellow and completely clear.
• Fill the first cuvette (#1) with 10 mL of the 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.
• Fill second cuvette (#2) with 10 mL of the reacted sample
(up to the mark) and replace the cap.
10 mL
#1
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