90.93 Standard confirmed May 21, 2008
CEN
CEN/TC 230 Water analysis
European Norm
13.060.01 Water quality in general
This international/European standard specifies a method for the determination of nitrogen present in water, in the form of free ammonia, ammonium, nitrite, nitrate and organic nitrogen compounds capable of conversion to nitrate under the oxidative conditions described. Dissolved nitrogen gas is not determined by this method.
PUBLISHED
EN ISO 11905-1:1998
90.93
Standard confirmed
May 21, 2008