99.60 Withdrawal effective Nov 17, 2021
CEN/TC 230 Water analysis
13.060.50 Examination of water for chemical substances
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.
99.60 Withdrawal effective
Nov 17, 2021
EN ISO 20236:2021