49
CHLORINE, FREE
8.8. CHLORINE, FREE
SPECIFICATIONS
Range 0.00 to 5.00 mg/L (as Cl
2
)
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Light Source LED with narrow band interference filter @ 525 nm
Method Adaptation of the EPA DPD method 330.5.
REQUIRED REAGENTS
POWDER:
Code Description Quantity
HI93701‑0 Free Chlorine Reagent 1 packet
LIQUID:
Code Description Quantity
HI93701A‑F Free Chlorine Reagent A 3 drops
HI93701B‑F Free Chlorine Reagent B 3 drops
REAGENT SETS
HI93701‑F Reagents for 300 tests (liquid)
HI93701‑01 Reagents for 100 tests (powder)
HI93701‑03 Reagents for 300 tests (powder)
For other accessories see page 87.
MEASUREMENT PROCEDURE
• Select the Chlorine (Free) method using the procedure described in
the Method Selection section (see page 17).
• 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
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