COD Comparison Table

Comparison of COD, BOD5, and TOC

The table below shows some of the fundamental differences between chemical oxygen demand (COD), 5-day biochemical oxygen demand (BOD5), and total organic carbon (TOC).

COD-BOD-TOC Comparison Table

Source: Hach, “The Science of Chemical Oxygen Demand” Technical Information Series, Booklet No. 9, by Wayne Boyles.