EN ISO 21258:2010

Stationary source emissions - Determination of the mass concentration of dinitrogen monoxide (N2O) - Reference method: Non-dispersive infrared method (ISO 21258:2010)

ISO 21258:2010 specifies a method for sampling, sample conditioning and determination of dinitrogen monoxide (N2O) content in the flue gas emitted from ducts and stacks to atmosphere. It sets out the non-dispersive infrared (NDIR) analytical technique, including the sampling system and sample gas conditioning system.
ISO 21258:2010 is a reference method for periodic monitoring and for calibration, adjustment or control of automatic monitoring systems permanently installed on a stack.
This reference method has been successfully tested on a sewage sludge incinerator where the N2O concentration in the flue gas was up to about 200 mg/m3.

Emissionen aus stationären Quellen - Bestimmung der Massenkonzentration von Distickstoffmonoxid (N2O) - Referenzverfahren: Nicht-dispersives Infrarot-Verfahren (ISO 21258:2010)

Diese Internationale Norm legt ein Verfahren zur Probenahme, Probenkonditionierung und Bestimmung des
Gehalts von Distickstoffmonoxid (N2O) in Abgasen, die aus Kanälen und Kaminen in die Atmosphäre emittiert
werden, fest. Sie beschreibt das nicht-dispersive Infrarot-Verfahren (NDIR), einschließlich der Einrichtung zur
Probenahme und Probenkonditionierung.
Das in dieser Internationalen Norm beschriebene Verfahren kann als Referenzverfahren für die regelmäßige
Überwachung der Emissionen sowie für die Kalibrierung, Justierung und Kontrolle von automatischen, fest im
Abgaskanal installierten Messeinrichtungen eingesetzt werden.
Dieses Referenzverfahren wurde erfolgreich an einer Klärschlammverbrennungsanlage erprobt, bei der die
N2O-Konzentration im Abgas bis etwa 200 mg/m3 reichte.

Émissions de sources fixes - Détermination de la concentration massique de protoxyde d'azote (N2O) - Méthode de référence: Méthode infrarouge non dispersive (ISO 21258:2010)

L'ISO 21258:2010 spécifie une méthode pour le prélèvement, le conditionnement des échantillons et la détermination de la teneur en protoxyde d'azote (N2O) des effluents gazeux émis dans l'atmosphère par des conduits et des cheminées. Elle décrit la technique d'analyse infrarouge non dispersive (NDIR), y compris le système de prélèvement et le système de conditionnement des échantillons de gaz.
L'ISO 21258:2010 est une méthode de référence en matière de surveillance périodique et d'étalonnage, d'ajustage ou de contrôle des systèmes automatiques de surveillance installés à demeure sur une cheminée.
Cette méthode de référence a été évaluée avec succès sur la base d'un essai réalisé lors de l'incinération de boues d'épuration pour des concentrations de N2O atteignant environ 200 mg/m3 dans les effluents gazeux.

Emisije nepremičnih virov - Določevanje masne koncentracije didušikovega monoksida (N2O) - Referenčna metoda: nedisperzivna infrardeča metoda (ISO 21258:2010)

Ta mednarodni standard določa metodo vzorčenja, priprave vzorca in določevanja vsebnosti didušikovega monoksida (N2O) v odpadnih plinih, ki jih v atmosfero oddajajo cevi in dimniki. Vzpostavlja nedisperzivno infrardečo analitično tehniko, vključno s sistemom vzorčenja in sistemom priprave vzorčnega plina.  Ta mednarodni standard je referenčna metoda za periodični monitoring in za kalibracijo, prilagoditev ali spremljanje avtomatskih nadzornih sistemov, ki so stalno nameščeni na dimnikih. Ta referenčna metoda je bila uspešno preskušena na sežigalnici blata iz čistilnih naprav, kjer je bila koncentracija N2O v odpadnem plinu do približno 200 mg/m3.

General Information

• Status: Published
• Publication Date: 14-Jun-2010
• Withdrawal Date: 30-Dec-2010
• ICS: 13.040.40 - Stationary source emissions
• Technical Committee: CEN/TC 264 - Air quality
• Drafting Committee: CEN/TC 264 - Air quality
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 15-Jun-2010
• Completion Date: 15-Jun-2010
• Ref Project: SIST EN ISO 21258:2010 - Stationary source emissions - Determination of the mass concentration of dinitrogen monoxide (N2O) - Reference method: Non-dispersive infrared method (ISO 21258:2010)

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2010
(PLVLMHQHSUHPLþQLKYLURY'RORþHYDQMHPDVQHNRQFHQWUDFLMHGLGXãLNRYHJD
PRQRNVLGD125HIHUHQþQDPHWRGDQHGLVSHU]LYQDLQIUDUGHþDPHWRGD,62

Stationary source emissions - Determination of the mass concentration of dinitrogen
monoxide (N2O) - Reference method: Non-dispersive infrared method (ISO 21258:2010)
Emissionen aus stationären Quellen - Bestimmung der Massenkonzentration von
Distickstoffmonoxid (N2O) - Referenzverfahren: Nicht-dispersives Infrarot-Verfahren
(ISO 21258:2010)
Émissions de sources fixes - Détermination de la concentration massique de protoxyde
d'azote (N2O) - Méthode de référence: Méthode infrarouge non dispersive (ISO
21258:2010)
Ta slovenski standard je istoveten z: EN ISO 21258:2010
ICS:
13.040.40 (PLVLMHQHSUHPLþQLKYLURY Stationary source emissions
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 21258
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2010
ICS 13.040.40
English Version
Stationary source emissions - Determination of the mass
concentration of dinitrogen monoxide (N2O) - Reference
method: Non-dispersive infrared method (ISO 21258:2010)
Émissions de sources fixes - Détermination de la Emissionen aus stationären Quellen - Bestimmung der
concentration massique de protoxyde d'azote (N2O) - Massenkonzentration von Distickstoffmonoxid (N2O) -
Méthode de référence: Méthode infrarouge non dispersive Referenzverfahren: Nicht-dispersives Infrarot-Verfahren
(ISO 21258:2010) (ISO 21258:2010)
This European Standard was approved by CEN on 19 May 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 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 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 21258:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 21258:2010) has been prepared by Technical Committee ISO/TC 146 "Air quality" in
collaboration with Technical Committee CEN/TC 264 “Air quality” the secretariat of which is held by DIN.
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 December 2010, and conflicting national standards shall be withdrawn
at the latest by December 2010.
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.
Endorsement notice
The text of ISO 21258:2010 has been approved by CEN as a EN ISO 21258:2010 without any modification.

INTERNATIONAL ISO
STANDARD 21258
First edition
2010-06-15
Stationary source emissions —
Determination of the mass concentration
of dinitrogen monoxide (N O) —
Reference method: Non-dispersive
infrared method
Émissions de sources fixes — Détermination de la concentration
massique de protoxyde d'azote (N O) — Méthode de référence:
Méthode infrarouge non dispersive

Reference number
ISO 21258:2010(E)
©
ISO 2010
ISO 21258:2010(E)
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ISO 21258:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Symbols and abbreviated terms .5
5 Principle.6
6 Description of the automated measuring equipment.6
6.1 General .6
6.2 Sampling line components.7
6.3 Analyser equipment .8
6.4 Responsibilities .8
7 Performance criteria and determination of the performance characteristics.9
7.1 Performance criteria.9
7.2 Determination of the performance characteristics and measurement uncertainty .10
7.3 Establishment of the uncertainty budget.10
8 Measurement procedure.11
8.1 Sampling location.11
8.2 Sampling point(s) .11
8.3 Choice of the measuring system .11
8.4 Setting of the analyser on site .12
9 Ongoing quality control.13
9.1 General .13
9.2 Frequency of checks.13
10 Evaluation of the method in the field .14
11 Expression of results.14
12 Test report.15
Annex A (informative) Schematic diagram of a typical analyser .16
Annex B (normative) Procedures for determination of the performance characteristics during the
general performance test.17
Annex C (informative) Example of assessment of compliance of NDIR method for N O with
requirements on emission measurements .20
Annex D (informative) Results of comparison tests.27
Annex E (informative) Leak test procedures.30
Bibliography.32

ISO 21258:2010(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 21258 was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 1, Stationary
source emissions.
iv © ISO 2010 – All rights reserved

ISO 21258:2010(E)
Introduction
Dinitrogen monoxide (N O, also known as nitrous oxide) is an important greenhouse gas with a global
warming potential 310 times that of carbon dioxide (CO ). N O is of both natural and anthropogenic origin.
2 2
Increased emissions of N O have been observed, for example, in the exhaust gas of combustion processes
using nitrogenous fuels at temperatures below 900 °C, and in the reduction of NO using the selective non-

x
catalytic reduction (SNCR) process, in particular when urea is used. There is considerable uncertainty over
current N O emissions, which is reflected in the wide range of emission factors cited. The largest uncertainties
are for emissions from natural and agricultural sources, which are difficult to measure accurately. In the past,
emissions from stationary sources such as coal-fired plants and industry were overestimated due to a serious
artefact in the grab-sampling methodology used to measure emissions. N O is involved in the EU emission
trading scheme along with CO and methane (CH ).
2 4
Improved meas
...