Hanna-instruments HI 83207-01 Instrukcja Użytkownika Strona 49

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49
Dissolved Oxygen
Let the sample stand and the flocculent agent will start to settle.
After approximately 2 minutes, when the upper half of the bottle becomes limpid,
add 10 drops of HI 93732C-0.
Replace the cap and invert the bottle until the settled flocculent dissolves completely.
The sample is ready for measurement when it is yellow and completely limpid.
Fill the cuvette up to the mark with 10 mL of the unreacted
(original) sample, and replace the cap. This is the blank.
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 another cuvette up to the mark with 10 mL of the reacted
sample and replace the cap.
Reinsert the cuvette into the instrument.
Press Read to start the reading. The instrument will display the results in mg/L of dissolved oxygen.
INTERFERENCES
Interferences may be caused by reducing and oxidizing materials.
10 mL
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