Hanna-instruments HI 83213-2008 Uživatelský manuál stáhnout pdf (Strana 41)

IODINE

Iodine

SPECIFICATIONS

Range 0.0 to 12.5 mg/L

Resolution 0.1 mg/L

Accuracy ±0.1 mg/L ±5% of reading at 25 °C

Typical EMC ±0.1 mg/L

Deviation

Light Source Tungsten lamp with narrow band interference filter @ 525 nm

Method Adaptation of the

Standard Methods for the Examination of Water and Wastewater,

edition

, DPD method. The reaction between iodine and the reagent causes a pink

tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93718-0 DPD Reagent 1 packet

REAGENT SETS

HI 93718-01 Reagents for 100 tests

HI 93718-03 Reagents for 300 tests

For other accessories see page 72.

MEASUREMENT PROCEDURE

• Select the

Iodine

method using the procedure described in

the

Method Selection

section (see page 12).

• 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.

• Remove the cap and add the content of one packet of HI 93718-0

DPD reagent. Replace the cap and shake gently for about 30

seconds to dissolve most of the reagent.

10 mL

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Hanna-instruments HI 83213-2008 Uživatelský manuál Strana 41