Chemical Oxygen Demand Calculator
COD calculation from FAS titration readings.
Definition: Chemical Oxygen Demand (COD) is a measure of the oxygen equivalent of material in a sample that is oxidized under specified test conditions.
COD (mg/L) = (A − B) × N × 8000 / V
Reference: Metcalf & Eddy, Inc. (2003). Wastewater Engineering: Treatment and Reuse. McGraw-Hill Education.