该欧洲标准规定了在所述氧化条件下能够以游离氨，铵，亚硝酸盐，硝酸盐和能够转化为氮氧化物的有机化合物的形式测定水中的氮的方法。确定是在工具上进行的。溶解的氮气不是通过这种方法确定的。 该方法适用于地表水，废水和处理后污水的分析

This European Standard specifies a method for the determination of nitrogen in water in the form of free ammonia, ammonium, nitrite, nitrate and organic compounds capable of conversion to nitrogen oxides under the oxidative conditions described. Determination is carried out instrumentally. Dissolved nitrogen gas is not determined by this method. This method is applicable to the analysis of surface water, waste water and treated sewage effluent.