An Unbiased View of COD testing
In the existence of sulfuric acid, silver sulphate, and mercury sulphate, potassium dichromate oxidises the organic and natural make any difference contained while in the h2o sample to make carbon dioxide (CO2) and water (H2O). The level of potassium dichromate utilised is decided by evaluating the volumes of ferrous ammonium sulphate consumed in t