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FREE CHLORINE
FREE CHLORINE
FREE CHLORINE
FREE CHLORINE
FREE CHLORINE
SPECIFICATIONS
Range
0.00 to 2.50 mg/L
Resolution
0.01 mg/L
Accuracy
±0.03 mg/L ±3% of reading at 25 °C
Typical EMC
±0.01 mg/L
Deviation
Light Source
Tungsten lamp with narrow band interference filter @ 525 nm
Method
Adaptation of the
EPA DPD method 330.5. The reaction between free chlorine and the
DPD reagent causes a pink tint in the sample.
REQUIRED REAGENTS
POWDER
:
Code
Description
Quantity
HI 93701-0
DPD
1 packet
LIQUID:
Code
Description
Quantity
HI 93701
A
-F
DPD1 Indicator
3 drops
HI 93701
B
-F
DPD1 Buffer
3 drops
REAGENT SETS
HI 93701-F
Reagents for 300 tests (liquid)
HI 93701-01
Reagents for 100 tests (powder)
HI 93701-03
Reagents for 300 tests (powder)
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the
Free Chlorine 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.
Free Chlorine
FREE CHLORINE
10 mL