Chemical Oxygen Demand Calculator
Chemical Oxygen Demand (COD) Reference Values:
Clean Water: < 10 mg/L
Surface Water: 10-50 mg/L
Wastewater: 100-1000 mg/L
Industrial Waste: 1000-10000 mg/L
K₂Cr₂O₇: Dichromate
Standard Method: 5220 D
Result: