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Chemical Oxygen Demand Calculator
Calculate COD (mg/L) and total pollutant load from titration data
Formula: $\text{COD (mg/L)} = \frac{(B - S) \cdot N \cdot 8000}{\text{Volume of Sample (mL)}}$
Where $B$ = Blank titrant volume, $S$ = Sample titrant volume, and $N$ = Normality of FAS titrant.
Where $B$ = Blank titrant volume, $S$ = Sample titrant volume, and $N$ = Normality of FAS titrant.
Titration Parameters
Calculation Results
⚠️ Chemical Oxygen Demand (COD) tests involve strong acid digestions using potassium dichromate and concentrated sulfuric acid under high temperatures. Always handle glassware and reagents inside a certified fume hood with proper personal protective equipment (PPE).