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8.8. CHLORINE, FREE
SPECIFICATIONS
Range
0.00 to 5.00 mg/L (as Cl
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
HI93701‑0
Free Chlorine Reagent
LIQUID:
Code
Description
HI93701A‑F
Free Chlorine Reagent A
HI93701B‑F
Free Chlorine Reagent B
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)
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.
)
2
method using the procedure described in
Quantity
1 packet
Quantity
3 drops
3 drops
10 mL
49
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