Hanna-instruments HI 83207-01 Manual do Utilizador descarregar pdf (Página 21)

• Reinsert the cuvette into the instrument.

• Press Read to start the reading. The instrument displays the results in mg/L of free chlorine.

INTERFERENCES

Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.

In case of water with hardness greater than 500 mg/L CaCO

, shake the sample for approximately

2 minutes after adding the powder reagent.

In case of water with alkalinity greater than 250 mg/L CaCO

or acidity greater than 150 mg/L CaCO

the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the

sample with diluted HCl or NaOH.

Free Chlorine

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Hanna-instruments HI 83207-01 Manual do Utilizador Página 21