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64
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,
18
th
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 132.
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
Iodine