White Paper

Improve Disinfection While Significantly Reducing Maintenance, Consumables, Water, and Energy Costs

For many years, water treatment plants have struggled with the question of how to best measure free chlorine in drinking water. There are two commonly used methods – the colorimetric and the amperometric – and each presents its own challenges. Now, new developments in technology make a reexamination of free chlorine measurement important to every water plant. There are ways to have it all – a better disinfection method and lower costs.

Read this examination of the pros and cons of free chlorine measurement methods, the issues with these methods, and new approaches and technologies in reagent-free solutions.

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Learn how to:

  • Take advantage of amperometric benefits without compromise
  • Eliminate the “weak link” in amperometric measurement
  • Reduce water consumption by more than half
  • Significantly lower operating and maintenance time and costs
Download this white paper for details on the free chlorine measurement solution.

A Complete Liquid Analysis Portfolio from One Trusted Supplier


Emerson can supply the full range of liquid analysis technologies, including pH/ORP, conductivity, dissolved oxygen, chlorine, and turbidity.