Measurement of Dissolved Oxygen
Measuring Dissolved Oxygen in Water and Wastewater: A Laboratory Guide Dissolved Oxygen (DO) is one of the most important indicators of water quality. Whether it’s drinking water, surface water, or wastewater, DO levels tell us a lot about biological activity, pollution load, and overall ecosystem health. In this blog, we’ll walk through the laboratory procedure for determining Dissolved Oxygen using the classic iodometric (Winkler) titration method—explained clearly and practically. Purpose of the Test The aim of this procedure is to accurately determine the amount of dissolved oxygen present in water and wastewater samples using a standardized laboratory method. Scope of Application This method is applicable in environmental and water-testing laboratories where routine analysis of: Drinking water Surface water Groundwate...