The 2-Minute Rule for COD testing
While in the presence of sulfuric acid, silver sulphate, and mercury sulphate, potassium dichromate oxidises the natural and organic make a difference contained inside the h2o sample to supply carbon dioxide (CO2) and water (H2O). The level of potassium dichromate utilised is decided by evaluating the volumes of ferrous ammonium sulphate consumed a