Course 6: Introduction to Free Chlorine
- Lesson 1 – Free Chlorine for Water Disinfection (2:05)
- Lesson 2 – Measuring Free Chlorine (2:33)
- Lesson 3 – pH and Free Chlorine (5:37)
- Lesson 4 – Parts of a Free Chlorine Measurement Signal (5:47)
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Lesson 2 – Measuring Free Chlorine (2:33)
Watch the video to learn about colorimetric and amperometric techniques used to measure free chlorine.
> Colorimetric techniques use a chemical reaction with a color change to quantify free chlorine concentration (usually with DPD).
> Amperometric techniques use an electrochemical reaction where electrical current correlates to free chlorine concentration.