What is BS EN 12260-Determination of bound nitrogen (TNb) about?  
BS EN 12260 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.
BS EN 12260 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.
Who is BS EN 12260-Determination of bound nitrogen (TNb) for? 
BS EN 12260 on the Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides is useful for: 
- Manufacturers of packaged drinking water 
- Water suppliers 
- Test laboratories/test personnel 
- Food health and safety departments 
Why should you use BS EN 12260-Determination of bound nitrogen (TNb)?  
Oxidation of the sample containing nitrogen by catalytic combustion in an oxygen atmosphere at > 700 °C, to nitrogen oxides. Quantification of nitrogen concentration is carried out by chemiluminescence detection (after reaction with ozone).
BS EN 12260 provides you with apparatus, sampling, transport, storage, and preparation of test pieces, preparation of reagents and apparatus, pre-treatment of test pieces, test procedure, and much more. 
BS EN 12260 specifies a method for the determination of total bound nitrogen after oxidation of inorganic and organic nitrogen compounds by combustion to nitrogen oxides. Quantification is carried out by Chemiluminescence.
The test methods and procedures provided by BS EN 12260 assist you in the determination of bound nitrogen and ensure reducing the risk of severe health issues. 
With obedience and compliance to BS EN 12260, you can enhance the efficacy of the water and manufacture a standardized product. 
