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36
Total Chlorine
TOTAL CHLORINE
SPECIFICATIONS
Range
0.00 to 3.50 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 the chlorine and the
DPD reagent causes a pink tint in the sample.
REQUIRED REAGENTS
POWDER:
Code
Description
Quantity
HI 93711-0
DPD
1 packet
LIQUID:
Code
Description
Quantity
HI 93701
A
-T
DPD1 indicator
3 drops
HI 93701
B
-T
DPD1 buffer
3 drops
HI 93701
C
DPD3 solution
1 drop
REAGENT SETS
HI 93701-T
Reagents for 300 total chlorine tests (liquid)
HI 93711-01
Reagents for 100 total chlorine tests (powder)
HI 93711-03
Reagents for 300 total chlorine tests (powder)
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the
Total 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.
10 mL