Measured parameters | Analytical Methods | Comments on methods |
pH and temperature | Electrochemical glass electrode (NF T 90-008) | In situ measurement using HANNA brand pH-meter |
Total Kjeldahl Nitrogen (TKN) | Method after selenium mineralization (NF T 90-010) | Digestion of 50 ml of sample and determination by titrimetry after distillation. |
Chemical Oxygen Demand (COD) | Potassium dichromate oxidizability method (NF T 90-101) | Oxidation by excess dichromate in an acidic medium followed by a dosage of the excess dichromate by the mixed iron and ammonium sulfate. |