Understanding The Different Phosphorus Tests

In wastewater treatment, phosphorus testing can quickly become confusing. For example, there are three different tests. So, which test was performed? Test results can be displayed in two different forms. So, which form was utilized? Tests can measure both particulate and dissolved phosphorus. So, was the sample filtered?

Knowing which test to run, which units of measurement to choose, and how to express the result can be overwhelming for even the most seasoned chemist. This application note is designed to cut through the noise and confusion by applying simple, easy-to-understand information for the non-chemist about the different forms and analytical methods for phosphorus in water—so that you can choose the right test and communicate the results confidently.