The smart Trick of COD testing That Nobody is Discussing
Within the existence of sulfuric acid, silver sulphate, and mercury sulphate, potassium dichromate oxidises the natural and organic make any difference contained during the h2o sample to make carbon dioxide (CO2) and drinking water (H2O). The amount of potassium dichromate utilised is decided by comparing the volumes of ferrous ammonium sulphate co