Here are a few FAQ's related ...
Published by Robert Menegotto, President & CEO at MANTECH INC.
Here are a few FAQ's related to this as it is often an industry and Academic question by students.
What is BOD?: https://mantech-inc.com/analysis-systems/biochemical-oxygen-demand/#1527777885794-d64aac38-1a98
What is COD?: https://mantech-inc.com/analysis-systems/chemical-oxygen-demand/#1527776540240-b46f8151-8476
What is the difference between BOD and COD?: https://mantech-inc.com/analysis-systems/chemical-oxygen-demand/#1527776540490-440adc81-12c4
What is a faster and green way to measure BOD5 vs 5 days? PeCOD: https://mantech-inc.com/analysis-systems/chemical-oxygen-demand/
Good luck! Robert