The Story of pH and Water quality

With the new addition of ORPs, Salt and Dissolved Oxygen, one of the most popular contents on HORIBA website, “the story of pH and Water quality” has been updated; this site is full of various, useful information on water quality, from basic explanations through to applied technologies. From beginner through to expert, the site offers enjoyable and educational content to the reader.


The Story of pH and Water quality

Here, we offer an introductory course on pH and water quality. We explain—as simply as possible—what pH, conductivity and ions are, and their relevance to our everyday lives, allowing people who are not familiar with these concepts to understand them easily.


The Basis of pH and Water quality

Our “water quality made easy” series mainly contains explanations on familiar topics. In our basic course on pH and water quality measurement, we explain about practical measurement matters, including the meanings of the necessary technical terms. Please make use of this knowledge in your everyday work.


Measurement of pH and Water quality

In the application course on pH and water quality measurement, we mainly discuss—based on the fundamental knowledge provided in the basic course—practical sample measurement procedures. We explain about particular types of samples and samples that require special precautions when performing measurement.