DIN 38409-27-1992 德国检验水、废水和淤泥的标准方法.说明作用和物质特性的参数(H组).总的束缚氮TNb的测定(H27)
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of total bound nitrogen TNb (H 27)
The document describes a chemical method for the determination of the total bound nitrogen in water in a range of 0,1mg/l to 1g/l. By heating the water sample the nitrogen will be converted in the reduction or oxidation products. Those are determined by a useful apparatus.#,,#