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Standards [CURRENT]

DIN EN ISO 11771
Air quality - Determination of time-averaged mass emissions and emission factors - General approach (ISO 11771:2010); German version EN ISO 11771:2010

Title (German)

Luftbeschaffenheit - Ermittlung von zeitlich gemittelten Massenemissionen und Emissionsfaktoren - Allgemeine Vorgehensweise (ISO 11771:2010); Deutsche Fassung EN ISO 11771:2010


This International Standard specifies generic methods for the determination and reporting of time averaged mass emissions from a specific installation or from a family of installations (or common source type), using data collected by measurement. This includes the determination of mass emission rates by the simultaneous measurement of mass concentration and gas flow, using standardized manual or continuous methods and also the estimation of the uncertainty of the mass emission rates. This International Standard also deals with the determination of the time averaged mass emission rates using time series emission rate values as well as the estimation of the expanded uncertainty of the average. Similarly, the determination of time averaged emission factors for a specific installation or a family of installations and the estimation of their associated uncertainty characteristics are described. This International Standard is applicable for determining emission factors or emissions reduction efficiency from stationary sources, including emissions from industrial processes where calculation based on fuel and raw material is not practical. It does not deal with limit compliance monitoring in the context of emission control regulations. This International Standard requires the use of measurement-based methods and calculation-based methods for the determination of characteristics. It covers the planning and execution of measurement programmes to collect data, selection of measurement procedures, calculation of results, estimation of uncertainty, determination of emissions factors, and the preparation of test reports. The measurement of emissions from vehicular, area, or fugitive sources is not specifically covered. However, this standard can be used for quantification of emissions factors for those sources provided that data from corresponding emission measurements are available. This International Standard does not provide any information on the generation of activity statistics and does not describe the measurement procedures that are fully described in standards. However, these standards are referred to in the normative references and bibliography. This International Standard addresses test laboratories which carry out measurement procedures for the determination of mass emissions and emission factors, operators of facilities who use or report such data, and regulatory authorities which assess the reported results.

Document: references other documents

Responsible national committee

NA 134-04-03-14 UA - Mirror committee to measurement related aspects of CEN/TC 264/WG 33  

Responsible european committee

CEN/TC 264 - Air quality  

Edition 2011-04
Original language German
Translation English
Price from 99.10 €
Table of contents


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