MIOX RIO Series Operators Manual
P/N: 102-00076-G Page 75
Method One:
1. Add 5mL of 5.25% bleach into one gallon of distilled water.
2. Shake to mix thoroughly.
3. Allow the water to sit 2 days inside.
4. After 2 days inside, move the water outside where it will be exposed to direct
sunlight since ultraviolet light reduces chlorine to chlorides.
5. Test a sample for chlorine and allow to sit longer in direct sunlight if chlorine is
still present.
Method Two:
1. Add 3 mL of oxidant solution into one gallon of distilled water.
2. Shake to mix thoroughly.
3. Allow the water to sit for thirty minutes.
4. Check the chlorine residual in the water.
5. If there is no chlorine residual in the water, add another 3 mL, and wait another thirty
minutes.
6. If there is a chlorine residual, record the value and wait another 15 minutes.
7. Check the chlorine residual again. If the chlorine value is the same as the last reading,
the chlorine demand in the water has been met and the water is stable.
8. If the chlorine value is different than the last reading, wait 15 minutes and check it
again. Repeat this procedure until the chlorine residual is stable.
9. Record the final chlorine residual value for use in the analysis that follows.
Measuring Chlorine Concentration
1. Fill the 250 mL glass beaker with approximately 200 mL of oxidant to be tested.
2. Rinse the jar several times with chlorine demand-free water and then fill to the 2500 mL,
or 5000 mL line with demand-free water, depending on which dilution technique you are
using:
• MIOX Series Systems: Use a 1:2500 ratio (= 1.0 mL solution to 2500 mL water or
2 mL solution to 5000 mL water.)
• HYPO Series Systems: Use a 1:5000 ratio (= 1 mL solution to 5000 mL water)
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