EN ISO 11771:2010

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

ISO 11771:2010 specifies a generic method for the determination and the reporting of time-averaged mass emissions from a specific installation or of a family of installations (or common source type), using data collected by measurements, and by establishing: mass emission rates by the simultaneous measurement of concentration and gas flow, using standardized manual or automatic methods, and also the estimation of the uncertainty of the measurements; time-averaged mass emission rates using time series of mass emission rate values, their uncertainty characteristics, and also the determination of the expanded uncertainty of the average; time-averaged emission factors for a specific installation or of a family of installations and their associated uncertainty characteristics; a quality management system to assist the process of inventory quality assurance and verification.
ISO 11771:2010 is applicable to the determination of emission factors for stationary sources including emissions from industrial processes where calculation from fuel and raw material is not practical, for greenhouse gases, and air pollutants including fine particulate material. ISO 11771:2010 does not address compliance monitoring in the context of emission control regulations.
ISO 11771:2010 requires the use of measurement-based methods and calculation-based methods that use measurement data. It covers the planning and execution of the measurement programme to collect data, selection of sampling methods, calculation of results, estimation of uncertainty, determination of emission factors, and the reporting of information in a form that enables users to apply them. ISO 11771:2010 specifies how to: generate time-averaged mass emission rate data of a known quality, for a defined period of time, and a documented set of operational conditions; generate complete data sets representative of a known time period (i.e. a calendar year) by filling gaps in mass emission rate data series and combining data sets numerically; calculate emission factors for a known time period; calculate time-averaged emission factors of a known quality for a known source type.
The measurement of emissions from vehicular, area or fugitive sources is not specifically covered. However, ISO 11771:2010 can be used for quantification of emission factors for those sources provided that measurements of emissions are available.
ISO 11771:2010 does not explicitly include measurement procedures that are fully described in the referenced standards. Neither does it provide advice on the generation of activity statistics.
ISO 11771:2010 is compatible with ISO 14064-1 and ISO 14064-3.

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

Diese Internationale Norm legt allgemeine Verfahren fest zur Ermittlung und Meldung von zeitlich gemittelten Massenemissionen einer bestimmten Anlage oder einer Gruppe von Anlagen (oder eines gemeinsamen Quellentyps) unter Verwendung von messtechnisch ermittelten Daten und durch Bereitstellung von:
-   Emissionsmassenströmen durch gleichzeitige Messung der Konzentration und des Gasvolumenstroms mit standardisierten manuellen oder automatischen Verfahren und die Schätzung der Unsicherheit der Messung;
-   zeitlich gemittelten Emissionsmassenströmen auf der Basis von Zeitreihen der Werte der Emissions-massenströme, ihrer Unsicherheitskenngrößen und der Ermittlung der erweiterten Unsicherheit des Mittelwertes;
-   zeitlich gemittelten Emissionsfaktoren für eine bestimmte Anlage oder Gruppe von Anlagen und ihre zugehörigen Unsicherheitskenngrößen;
-   einem Qualitätsmanagementsystem zur Unterstützung der Qualitätssicherung und Überprüfung von Katastern.
Diese Internationale Norm ist anwendbar bei der Ermittlung von Emissionsfaktoren für stationäre Quellen einschließlich der Emissionen von industriellen Prozessen, wo die Berechnung auf der Basis von Brennstoff und Einsatzstoff nicht praktikabel ist, für Treibhausgase und für luftverunreinigende Stoffe einschließlich Feinstaub. Diese Internationale Norm behandelt nicht die Überprüfung auf Einhaltung im Sinne von Verordnungen zur Emissionsüberwachung.
Diese Internationale Norm erfordert den Einsatz von messtechnischen Verfahren und von mathematischen Verfahren, die die Messdaten verwenden. Sie beinhaltet die Planung und Durchführung von Mess¬programmen zur Gewinnung der Daten, die Auswahl der Messverfahren, die Berechnung der Ergebnisse, die Schätzung der Unsicherheit, die Ermittlung von Emissionsfaktoren und die Berichterstattung in einer Form, die dem Nutzer die Verwendung der Informationen erlaubt. Diese Internationale Norm legt fest, wie:
(....)

Qualité de l'air - Détermination de la moyenne temporelle des émissions massiques et des facteurs d'émission - Approche générale (ISO 11771:2010)

L'ISO 11771:2010 spécifie une méthode générique pour la détermination des émissions massiques moyennées dans le temps émises par une installation spécifique ou une famille d'installations (ou un type de source commune), à l'aide de données collectées par des mesurages et en établissant les taux d'émission massique grâce au mesurage simultané de la concentration et du débit de gaz, à l'aide de méthodes normalisées manuelles ou automatiques, ainsi que l'estimation de l'incertitude relative aux mesurages, les taux d'émission massique moyennés dans le temps à l'aide de séries temporelles de valeurs de taux d'émission massique, des caractéristiques de leur incertitude ainsi que de la détermination de l'incertitude élargie de la moyenne, les facteurs d'émission moyennés dans le temps relatifs à une installation spécifique ou à une famille d'installations ainsi que les caractéristiques de l'incertitude qui leur est associée et un système de management de la qualité destiné à assister le processus de vérification et d'assurance de la qualité de l'inventaire.
L'ISO 11771:2010 s'applique à la détermination des facteurs d'émission provenant de sources fixes, y compris en ce qui concerne les émissions provenant de processus industriels où le calcul à partir des combustibles et des matières premières s'avère difficile à faire, des gaz à effet de serre et des polluants de l'air, y compris les particules fines. L'ISO 11771:2010 ne traite pas du contrôle de la conformité aux réglementations applicables au contrôle des émissions.
L'ISO 11771:2010 implique l'utilisation de méthodes fondées sur le mesurage et sur des calculs utilisant des données du mesure. Elle traite de la planification et de l'exécution du programme de mesure afin de recueillir des données, choisir les méthodes d'échantillonnage, calculer les résultats, estimer l'incertitude, déterminer les facteurs d'émission et consigner les informations sous forme d'un rapport permettant aux utilisateurs de les appliquer. L'ISO 11771:2010 spécifie comment générer des données relatives aux taux d'émission massique moyennés dans le temps, d'une qualité connue, pour une période de temps définie et un ensemble documenté de conditions de fonctionnement, comment générer des ensembles de données complets représentatifs d'une période de temps connue (c'est-à-dire une année calendaire) en comblant les écarts dans les séries de données sur les taux d'émission massique et en combinant numériquement les ensembles de données, comment calculer des facteurs d'émission pendant une période de temps donnée et comment calculer les facteurs d'émission moyennés dans le temps d'une qualité connue pour un type de source connu.
Le mesurage des émissions depuis des sources mobiles, étendues ou diffuses n'est pas spécifiquement abordé. Cependant, l'ISO 11771:2010 peut être utilisée afin de quantifier les facteurs d'émission relatifs à ces sources à condition que les mesurages des émissions soient disponibles.
L'ISO 11771:2010 n'inclut pas de manière explicite les modes opératoires de mesure dont la description complète figure dans les normes publiées indiquées dans les Références normatives ou dans la Bibliographie. Elle ne fournit aucun conseil relatif à la production de statistiques d'activité.

Kakovost zraka - Določevanje časovno povprečenih masnih emisij in emisijskih faktorjev - Splošni pristop (ISO 11771:2010)

Ta standard EN je namenjen uporabnikom kot pomoč pri:
- Pripravi popisa emisij časovno povprečenih emisij v zrak.
- Določevanju masnih emisijskih faktorjev pri trgovanju z emisijami.
- Poročanju o časovno povprečenih masnih emisijah onesnaževal iz industrijskih inštalacij za poročanje v registre izpustov in prenosov onesnaževal.
Standard zajema (ali vključuje s sklicevanjem): Načrtovanje in izvajanje primernega programa merjenja, vzorčenje, izbiro opreme, izračun reprezentativnih stopenj emisij, izbiro ustreznih podatkov o aktivnosti, določevanje negotovosti in poročanje o informacijah v obliki, primerni za izračun emisijskih faktorjev.
Podano je vodilo za:
- Oblikovanje podatkov o stopnjah časovno povprečenih masnih emisij za določeno obdobje.
- Oblikovanje popolnih podatkovnih naborov z: zapolnjevanjem vrzeli v serijah podatkov o stopnjah emisij, nadomeščanjem nepopolnih podatkovnih naborov in številčnim kombiniranjem podatkovnih naborov.
- Združevanje empiričnih podatkov, reprezentativnih za razred poročanja.
- Izračun emisijskih faktorjev z opredeljeno časovno konstanto.

General Information

• Status: Published
• Publication Date: 14-Dec-2010
• Withdrawal Date: 29-Jun-2011
• ICS: 13.040.01 - Air quality in general
• ICS: 13.040.40 - Stationary source emissions
• Technical Committee: CEN/TC 264 - Air quality
• Drafting Committee: CEN/TC 264/WG 24 - Quantification of mass emission
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 15-Dec-2010
• Due Date: 28-Jan-2011
• Completion Date: 15-Dec-2010
• Ref Project: SIST EN ISO 11771:2011 - Air quality - Determination of time-averaged mass emissions and emission factors - General approach (ISO 11771:2010)

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2011
.DNRYRVW]UDND'RORþHYDQMHþDVRYQRSRYSUHþHQLKPDVQLKHPLVLMLQHPLVLMVNLK
IDNWRUMHY6SORãQLSULVWRS,62
Air quality - Determination of time-averaged mass emissions and emission factors -
General approach (ISO 11771:2010)
Luftbeschaffenheit - Ermittlung von zeitlich gemittelten Massenemissionen und
Emissionsfaktoren - Allgemeine Vorgehensweise (ISO 11771:2010)
Qualité de l'air - Détermination de la moyenne temporelle des émissions en masse et
des facteurs d'émission - Approche générale (ISO 11771:2010)
Ta slovenski standard je istoveten z: EN ISO 11771:2010
ICS:
13.040.01 Kakovost zraka na splošno Air quality in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 11771
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2010
ICS 13.040.01
English Version
Air quality - Determination of time-averaged mass emissions and
emission factors - General approach (ISO 11771:2010)
Qualité de l'air - Détermination de la moyenne temporelle Luftbeschaffenheit - Ermittlung von zeitlich gemittelten
des émissions massiques et des facteurs d'émission - Massenemissionen und Emissionsfaktoren - Allgemeine
Approche générale (ISO 11771:2010) Vorgehensweise (ISO 11771:2010)
This European Standard was approved by CEN on 27 November 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11771:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 11771:2010) has been prepared by Technical Committee CEN/TC 264 “Air quality”,
the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 146 “Air quality”.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2011, and conflicting national standards shall be withdrawn at
the latest by June 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

INTERNATIONAL ISO
STANDARD 11771
First edition
2010-12-15
Air quality — Determination of time-
averaged mass emissions and emission
factors — General approach
Qualité de l'air — Détermination de la moyenne temporelle des
émissions massiques et des facteurs d'émission — Approche générale

Reference number
ISO 11771:2010(E)
©
ISO 2010
ISO 11771:2010(E)
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ii © ISO 2010 – All rights reserved

ISO 11771:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Terms and definitions .2
3 Symbols and abbreviated terms .3
4 Principle .3
5 Determination of mass emission rates .4
5.1 Planning .4
5.2 Measurements .5
5.3 Calculation of mass emission rates .6
5.4 Determination of time-averaged mass emission rates.7
5.5 Uncertainty estimation.7
6 Activity data .9
6.1 Collection of activity data.9
6.2 Activity data uncertainty.9
7 Determination of time-averaged mass emission factors .10
7.1 General .10
7.2 Calculating the time-averaged emission factor .10
7.3 Uncertainty of the time-averaged emission factor.10
7.4 Aggregating emission factors.11
7.5 Uncertainty estimation of aggregates of emission factors.11
8 Quality management system requirements.11
9 Reporting.12
9.1 General .12
9.2 Test report.12
Annex A (normative) Minimum requirements for the measurement plan.13
Annex B (informative) Example of uncertainty estimation.16
Annex C (informative) Data manipulation.21
Bibliography.22

ISO 11771:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 11771 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 264, Air quality, in collaboration with Technical Committee ISO/TC 146, Air quality, Subcommittee
SC 4, General aspects, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
iv © ISO 2010 – All rights reserved

ISO 11771:2010(E)
Introduction
This Intenational Standard describes the measurement procedures necessary to determine the mass
emission of substances from stationary sources. Empirically generated data are necessary to determine the
uncertainty that can be associated with a stated result and to enable the verification of emission measurement
reports.
This Intenational Standard also describes the measurement procedures necessary to determine emission
factors. An emission factor is a value that relates the quantity of a pollutant released with an activity
associated with the release of that pollutant. Emission factors are useful when the operational conditions and
time period for which they are representative is known.
Emission factors are used to calculate and report mass emissions for both emission inventory and non-
inventory uses. Inventory uses can include:
⎯ emission trading;
⎯ compiling polluting release and transfer registers;
⎯ air quality modelling;
⎯ air quality management;
⎯ compliance with national emission limits.
Non-inventory uses can include:
⎯ developing site-specific emission estimates;
⎯ developing control strategies;
⎯ risk assessments;
⎯ deciding appropriate permit limits.
The most commonly used methodology for compiling an emission inventory is to combine information on the
extent to which an activity takes place (quantified by activity data a) with representative values of the
emissions or removals per unit activity, called emission factor F. The basic equation providing the emission as
&
a mass emission rate m is given by
&
m = aF
The basic equation can be modified in some circumstances to include, for instance, emission reduction
efficiency (abatement) factors.
NOTE 1 Countries compiling inventories for reporting emissions under international agreements use methodologies
agreed upon by convention {e.g. UN FCCC, UN ECE Long-range Transboundary Air Pollution (Reference [31]), or the
UN ECE Aarhus Convention}. A common feature of all these conventions is a requirement to use good practice
methodologies when estimating an
...