Norm

NEN-EN 12260:2003 en

Water - Bepaling van het stikstofgehalte - Bepaling van het gehalte aan gebonden stikstof (TN sub b), na oxidatie tot stikstof oxiden

49,30

Over deze norm

Status Definitief
Aantal pagina's 13
Commissie Anorganische parameters
Gepubliceerd op 01-10-2003
Taal Engels
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. The concentration range of the method will depend on the injection volume used which is instrument specific. Total nitrogen can be determined in the range from 1 mg/l up to 200 mg/l. Higher concentrations can, if necessary, be determined by dilution of the sample. The limit of detection will depend on the instrument in use. Using a suitable injection volume, the limit of detection is typically round about 0,5 mg/l.

Details

ICS-code 13.060.50
Nederlandse titel Water - Bepaling van het stikstofgehalte - Bepaling van het gehalte aan gebonden stikstof (TN sub b), na oxidatie tot stikstof oxiden
Engelse titel Water quality - Determination of nitrogen - Determination of bound nitrogen (TN sub b), following oxidation to nitrogen oxides
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