جهت اندازه گیری اکسیژن خواهی شیمیایی با روش Manganese III Reactor Digestion COD Digestion Vials, Manganese III, pk/25 For determination of Chemical Oxygen Demand (COD) by the Manganese III Reactor Digestion Method. Hach Method 10067 Range: 30 - 1000 mg/L COD Pack of 25 vials.