MIOX RIO Series Operators Manual
P/N: 102-00076-G Page 76
3. Rinse the pipette several times by drawing in several mL of oxidant and discarding it.
4. With the pipette, accurately measure the solution sample needed (according to the
dilution technique used above) and add to the jar containing demand-free water.
5. Cap and shake the jar several seconds to mix thoroughly.
6. Using the solution from the jar, take a reading by following the directions provided with
the test kit.
7. For demand-free water created using:
• Method One (no chlorine residual in water): For the chlorine residual value
obtained in step #6 above, multiply by the dilution ratio used in step #2.
Example: The chlorine reading from Step #6 was 1.75 mg/l, and the dilution ratio
used was 1:2500. Chlorine concentration is:
1.75 mg/L x 2500 = 4375 mg/L
• Method Two (chlorine residual present in dilution water): Subtract the chlorine
residual value obtained in step #6 above by the chlorine residual value measured in
the demand- free water to determine the net chlorine value. Next, multiply this net
chlorine value by the dilution ratio from Step #2 to get the chlorine concentration of
the oxidant.
Example: The chlorine reading from Step #6 was 2.25 mg/L, the chlorine residual
measured in the demand-free water was 0.5 mg/L, and the dilution ratio used was
1:2500. Chlorine concentration is:
2.25 mg/L – 0.5 mg/L = 1.75 mg/L net
1.75 mg/L x 2500 = 4375 mg/L
8. Repeat this process three times, take the average of these readings and assign this
value to X to calculate chlorine production.
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