Standard Operating Prucedure for the Measurement of Chemicsl Oxygen Demand
Chemical Oxygen Demand (COD): A Practical Laboratory Guide Chemical Oxygen Demand (COD) is a key parameter used to assess the level of organic pollution in water and wastewater. It measures the amount of oxygen required to chemically oxidize organic and inorganic matter present in a sample. In this blog, we explain the COD test procedure , its principle, reagents, and calculations in a clear and laboratory-friendly way. Purpose of COD Testing The purpose of this standard operating procedure is to describe the laboratory method for determining Chemical Oxygen Demand in water and wastewater samples. Scope This procedure is applicable to laboratories engaged in the analysis of: Drinking water Surface water Industrial effluents Domestic and municipal wastewater where COD measurement is required for monitoring, compliance, or research purposes. Roles and Responsibilities Laboratory Chemist : Responsible for sample preparation, digestion, titration, and calculation of COD values. Tec...