EN ISO 2612:2023
(Main)Analysis of natural gas - Biomethane - Determination of ammonia content by Tuneable Diode Laser Absorption Spectroscopy (ISO 2612:2023)
Analysis of natural gas - Biomethane - Determination of ammonia content by Tuneable Diode Laser Absorption Spectroscopy (ISO 2612:2023)
This document describes several test methods for measuring the ammonia amount fraction in natural gas and biomethane at the trace level (µmol mol-1). The suitable handling and sampling of pressurised mixtures of ammonia in methane that are applied to several different ammonia measurement systems are described. The measurement systems are comprised of readily available commercial spectroscopic analysers that are specific to ammonia. These NH3 analysers are considered as a black box in terms of their operation, which is dependent on the instructions of the manufacturer. The document describes suitable calibration and measurement strategies to quantify ammonia in (bio)methane around and above the 10 mg m-3 (14 µmol mol-1) level and applies to analysis within absolute pressure ranges of 1 bar – 2 bar, temperatures of 0 °C – 40 °C and relative humidity <90 %.
References are also made to additional standards that are applied either to natural gas analysis or air quality measurements. In this document the matrix gas is always methane or biomethane and the measurand is the amount fraction NH3.
NOTE 1 bar = 0,1 MPa =105 Pa; 1 MPa = 1 N/mm2.
Analyse von Erdgas - Biomethan - Bestimmung von Ammoniakanteil durch Absorptionsspektroskopie mittels durchstimmbarer Laserdioden (ISO 2612:2023)
Dieses Dokument beschreibt mehrere Prüfverfahren zum Messen des Ammoniakstoffmengenanteils in Erdgas und Biomethan im Spurenbereich (µmol mol−1). Die geeignete Handhabung und Probenahme von druckbeaufschlagten Gemischen von Ammoniak in Methan, die auf mehrere verschiedene Ammoniakmesseinrichtungen angewendet werden, sind beschrieben. Die Messeinrichtungen bestehen aus fertig im Handel erhältlichen spektroskopischen Analysatoren, die spezifisch für Ammoniak sind. Diese NH3 Analysatoren gelten als eine Black Box bezüglich ihres Betriebs, der von den Anweisungen des Herstellers abhängig ist. Das Dokument beschreibt geeignete Kalibrier- und Messstrategien zum Quantifizieren von Ammoniak in (Bio)Methan um und über einem Niveau von 10 mg m−3 (14 µmol mol−1) und ist anwendbar für eine Analyse innerhalb von Absolutdruckbereichen von 1 bar bis 2 bar, bei Temperaturen von 0 °C bis 40 °C und bei einer relativen Luftfeuchte von < 90 %.
Es sind ebenfalls Verweisungen auf zusätzliche Normen enthalten, die auf die Erdgasanalyse oder auf Luftqualitätsmessungen angewendet werden. In diesem Dokument ist das Matrixgas immer Methan oder Biomethan und die Messgröße ist der Stoffmengenanteil NH3.
ANMERKUNG 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.
WARNUNG Die Anwendung dieses Dokumentes kann die Anwendung gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Dieses Dokument beansprucht nicht, alle damit verbundenen Sicherheitsprobleme zu behandeln. Es liegt in der Verantwortung des Anwenders dieses Dokuments, geeignete Sicherheits- und Gesundheitsschutzmaßnahmen vorzusehen und im Vorfeld die Anwendbarkeit aller anderen Einschränkungen zu klären.
Analyse du gaz naturel - Biométhane - Détermination de la teneur en ammoniac par spectroscopie d'absorption laser à diode accordable (ISO 2612:2023)
Le présent document décrit plusieurs méthodes d'essai permettant de mesurer la fraction molaire d'ammoniac dans le gaz naturel et le biométhane à l'état de traces (µmol mol−1). Il décrit la manipulation et l'échantillonnage appropriés de mélanges sous pression d'ammoniac dans le méthane appliqués à plusieurs systèmes de mesure de l'ammoniac différents. Les systèmes de mesure comprennent des analyseurs par spectroscopie commerciaux facilement disponibles qui sont spécifiques à l'ammoniac. Ces analyseurs de NH3 sont considérés comme une boîte noire en ce qui concerne leur fonctionnement, qui dépend des instructions du fabricant. Le présent document décrit les stratégies d'étalonnage et de mesurage appropriées pour la quantification de l'ammoniac dans le (bio)méthane aux environs et au-dessus du niveau de 10 mg m−3 (14 µmol mol−1) et s'applique à l'analyse dans des plages de pression absolue de 1 bar à 2 bar, des températures de 0 °C à 40 °C et une humidité relative < 90 %.
Des références sont également faites à des normes supplémentaires qui s'appliquent soit à l'analyse du gaz naturel, soit aux mesures de la qualité de l'air. Dans le présent document, le gaz de la matrice est toujours le méthane ou le biométhane et le mesurande est la fraction molaire de NH3.
NOTE 1 bar = 0,1 Mpa = 105 Pa; 1 Mpa = 1 N/mm2.
Analiza zemeljskega plina - Biometan - Določanje amoniaka z absorpcijsko spektroskopijo z nastavljivimi laserskimi diodami (ISO 2612:2023)
Ta dokument opisuje nekatere preskusne metode za merjenje deleža količine amoniaka v zemeljskem plinu
in biometanu pri vrednosti v sledovih (μmol mol-1). Opisani so postopki ustreznega ravnanja in vzorčenja
zmesi amoniaka in metana pod pritiskom, ki se uporabljajo v različnih sistemih za merjenje
amoniaka. Merilne sisteme sestavljajo na trgu vedno dostopni spektroskopski
analizatorji, ki so specifični za merjenje amoniaka. Ti analizatorji amoniaka (NH3) se obravnavajo kot črne skrinjice v smislu
delovanja, ki je odvisno od navodil proizvajalca. Ta dokument opisuje ustrezne strategije umerjanja in merjenja za določanje vsebnosti amoniaka v (bio)metanu s približno stopnjo 10 mg m-3 (14 μmol mol-1) ali več in se uporablja za analizo znotraj območja absolutnega
tlaka 1 bar – 2 bar, temperature 0 °C – 40 °C in relativne vlažnosti < 90 %.
Dokument se prav tako sklicuje na dodatne standarde, ki se uporabljajo za analizo zemeljskega plina ali merjenje kakovosti zraka. V tem dokumentu je matrični plin vedno metan ali biometan, meri pa se delež količine amoniaka (NH3).
OPOMBA: 1 bar = 0,1 MPa =105 Pa; 1 MPa = 1 N/mm2.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2024
Analiza zemeljskega plina - Biometan - Določanje amoniaka z absorpcijsko
spektroskopijo z nastavljivimi laserskimi diodami (ISO 2612:2023)
Analysis of natural gas - Biomethane - Determination of ammonia content by Tuneable
Diode Laser Absorption Spectroscopy (ISO 2612:2023)
Analyse von Erdgas - Biomethan - Bestimmung von Ammoniakanteil durch
Absorptionsspektroskopie mittels durchstimmbarer Laserdioden (ISO 2612:2023)
Analyse du gaz naturel - Biométhane - Détermination de la teneur en ammoniac par
spectroscopie d'absorption laser à diode accordable (ISO 2612:2023)
Ta slovenski standard je istoveten z: EN ISO 2612:2023
ICS:
75.060 Zemeljski plin Natural gas
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 2612
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2023
EUROPÄISCHE NORM
ICS 75.060
English Version
Analysis of natural gas - Biomethane - Determination of
ammonia content by Tuneable Diode Laser Absorption
Spectroscopy (ISO 2612:2023)
Analyse du gaz naturel - Biométhane - Détermination Analyse von Erdgas - Biomethan - Bestimmung von
de la teneur en ammoniac par spectroscopie Ammoniakanteil durch Absorptionsspektroskopie
d'absorption laser à diode accordable (ISO 2612:2023) mittels durchstimmbarer Laserdioden (ISO
2612:2023)
This European Standard was approved by CEN on 20 November 2023.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2612:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 2612:2023) has been prepared by Technical Committee ISO/TC 193 "Natural
gas" in collaboration with Technical Committee CEN/TC 408 “Natural gas and biomethane for use in
transport and biomethane for injection in the natural gas grid” the secretariat of which is held by
AFNOR.
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 2024, and conflicting national standards shall be
withdrawn at the latest by June 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 2612:2023 has been approved by CEN as EN ISO 2612:2023 without any modification.
INTERNATIONAL ISO
STANDARD 2612
First edition
2023-12
Analysis of natural gas — Biomethane
— Determination of ammonia content
by tuneable diode laser absorption
spectroscopy
Analyse du gaz naturel — Biométhane — Détermination de la teneur
en ammoniac par spectroscopie d'absorption laser à diode accordable
Reference number
ISO 2612:2023(E)
ISO 2612:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii
ISO 2612:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety precautions. 3
5 Principle . 3
6 Apparatus . 3
6.1 NH analyser . 3
6.2 Gas delivery system . 3
6.3 Temperature sensor . 4
6.4 Pressure sensor . 4
6.5 Calibration equipment . 4
6.5.1 General . 4
6.5.2 Pressure regulators for the NH cylinders . 4
6.5.3 Flow controller . 4
6.5.4 Flow meter . 4
6.5.5 Dilution device. 4
6.5.6 Output manifold . 5
7 Reagents and materials . 5
7.1 Methane . 5
7.2 Calibration gases. 5
7.3 Inert gas . 5
8 Sampling . 5
8.1 General . 5
8.2 Construction materials . 5
8.3 Cleanliness . 6
8.4 Installation of the calibration gas cylinder . 6
8.5 Pressure control . 6
8.6 Purging of reduction valve and transfer lines . 6
8.7 Flow control . 6
8.8 Leak control . 7
9 Calibration .7
9.1 Calibration procedures . 7
9.2 Frequency of calibration . 7
9.2.1 Multipoint calibration . 7
9.2.2 Zero and span point calibration . 7
10 Interferences . 7
10.1 Interfering absorbers. 7
10.2 Matrix gas . 7
10.3 Secondary level spectroscopic effects: Gas temperature, gas pressure, spatial
homogeneity .
...
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