BS EN ISO 21877:2019 - Stationary source emissions. Determination of the mass concentration of ammonia. Manual method

BS EN ISO 21877:2019

Stationary source emissions. Determination of the mass concentration of ammonia. Manual method

Status : Current   Published : October 2019



This document specifies a manual method of measurement including sampling and different analytical methods for the determination of the mass concentration of ammonia (NH3) in the waste gas of industrial plants, for example combustion plants or agricultural plants. All compounds which are volatile at the sampling temperature and produce ammonium ions upon dissociation during sampling in the absorption solution are measured by this method, which gives the volatile ammonia content of the waste gas.

This document specifies an independent method of measurement, which has been validated in field tests in a NH3 concentration range of approximately 8 mg/m3 to 65 mg/m3 at standard conditions. The lower limit of the validation range was determined under operational conditions of a test plant. The measurement method can be used at lower values depending, for example, on the sampling duration, sampling volume and the limit of detection of the analytical method used.


The plant, the conditions during field tests and the performance characteristics obtained in the field are given in Annex A.

This method of measurement can be used for intermittent monitoring of ammonia emissions as well as for the calibration and validation of permanently installed automated ammonia measuring systems.


An independent method of measurement is called standard reference method (SRM) in EN 14181 .

Standard NumberBS EN ISO 21877:2019
TitleStationary source emissions. Determination of the mass concentration of ammonia. Manual method
Publication Date25 October 2019
Normative References(Required to achieve compliance to this standard)ISO 14911, ISO 11732, ISO 7150-1, ISO/IEC GUIDE 98-3:2008 Ed 1
Informative References(Provided for Information)ISO 17179, EN 15259, ISO 9096, ISO 20988, ISO 14956, EN 14181
International RelationshipsEN ISO 21877:2019,ISO 21877:2019
Draft Superseded By18/30348673 DC
DescriptorsGases, Concentration, Mass, Exhaust gases, Stationary, Emission, Measurement, Properties, Quality assurance, Quality control, Ammonia, Determination of content
Title in FrenchÉmissions de sources fixes. Détermination de la concentration en masse de l’ammoniac dans les gaz de combustion. Méthode manuelle
Title in GermanEmissionen aus stationären Quellen. Ermittlung der Massenkonzentration von Ammoniak. Manuelles Verfahren
ISBN978 0 580 95819 9
File Size2.758 MB

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