BS EN 14792 specifies the standard reference method (SRM) based on the chemiluminescence principle for the determination of the nitrogen oxides (NOx) in flue gases emitted to the atmosphere from ducts and stacks. It includes the sampling and the gas conditioning system, as well as the analyser.
BS EN 14792 specifies criteria for demonstration of equivalence of an alternative method to the SRM by application of EN 14793:2017.
BS EN 14792 has been validated during field tests on waste incineration, co-incineration and large combustion installations and on a recognized test-bench. It has been validated for sampling periods of 30 min in the range of 0 mg/m3 to 1 300 mg/m3 of NOx for large combustion plants and 0 mg/m3 to 400 mg/m3 of NOx for waste incineration, according to emission limit values (ELV) laid down in the Directive 2010/75/EU.
Note: The characteristics of installations, the conditions during field tests and the values of repeatability and reproducibility in the field are given in Annex A.
BS EN 14792 on stationary waste emissions is relevant to:
Chemiluminescence is the production of electromagnetic radiation (ultraviolet, visible, or infrared) as a result of a chemical reaction.
BS EN 14792 specifies the characteristics to be determined and the performance criteria to be fulfilled by portable automated measuring systems (P-AMS) based on this measurement method.
Overall, BS EN 14791 specifies the standard reference method (SRM) based on a sampling system for sampling the nitrogen oxides in flue gases emitted to the atmosphere from ducts and stacks that reduce pollution caused by harmful gases.
EN 14792:2017