EN ISO 15112:2018
(Main)Natural gas - Energy determination (ISO 15112:2018)
Natural gas - Energy determination (ISO 15112:2018)
This document provides the means for energy determination of natural gas by measurement or by calculation, and describes the related techniques and measures that are necessary to take. The calculation of thermal energy is based on the separate measurement of the quantity, either by mass or by volume, of gas transferred and its measured or calculated calorific value. The general means of calculating uncertainties are also given.
Only systems currently in use are described.
NOTE Use of such systems in commercial or official trade can require the approval of national authorization agencies, and compliance with legal regulations is required.
This document applies to any gas-measuring station from domestic to very large high-pressure transmission.
New techniques are not excluded, provided their proven performance is equivalent to, or better than, that of those techniques referred to in this document.
Gas-measuring systems are not the subject of this document.
Erdgas - Bestimmung von Energiemengen (ISO 15112:2018)
Dieses Dokument sieht Maßnahmen vor zur Bestimmung von Energiemengen von Erdgas durch Messung oder Berechnung und beschreibt die dabei erforderlichen anzuwendenden Techniken und Maßnahmen. Die Berechnung von thermischer Energie beruht auf der gesonderten Messung der Gasmenge, entweder als Masse oder Volumen des (an Übergabestellen) übertragenen Gases und auf seinem gemessenen oder berechneten Brennwert. Allgemeine Maßnahmen zur Berechnung von Unsicherheiten sind ebenfalls angegeben.
Ausschließlich derzeit verwendete Systeme werden beschrieben.
ANMERKUNG Der Einsatz derartiger Systeme in kommerziellem oder offiziellem Handel erfordert möglicherweise die Zulassung durch nationale Zulassungsbehörden, und die Übereinstimmung mit gesetzlichen Vorschriften ist erforderlich.
Dieses Dokument gilt für alle Gasmessstationen, von Endkunden im privaten Bereich bis hin zu sehr großen Hochdrucktransportanlagen.
Neue Verfahren sind nicht ausgeschlossen, sofern ihre nachgewiesene Leistungsfähigkeit gleichwertig der oder besser als die jener Techniken ist, auf die in diesem Dokument Bezug genommen wird.
Gasmesssysteme sind nicht Gegenstand dieses Dokuments.
Gaz naturel - Détermination de l'énergie (ISO 15112:2018)
Le présent document fournit les moyens permettant de déterminer l'énergie du gaz naturel par mesurage ou par calcul, et décrit les techniques associées et les mesures nécessaires à prendre. Le calcul de l'énergie thermique est fondé sur le mesurage séparé de la quantité de gaz transféré, exprimée en masse ou en volume, et sur son pouvoir calorifique mesuré ou calculé. Il fournit également les moyens généraux permettant le calcul des incertitudes.
Seuls les systèmes actuellement utilisés sont décrits dans le document.
NOTE Qu'il s'agisse du secteur privé ou public, l'utilisation de tels systèmes dans le commerce peut requérir l'approbation d'organismes d'agrément nationaux et il est alors nécessaire qu'ils soient conformes aux dispositions de la loi.
Le présent document s'applique à tout poste de comptage de gaz, de la distribution intérieure au transport à très haute pression.
Le recours à de nouvelles techniques est admis sous réserve de performances éprouvées équivalentes ou supérieures aux techniques citées en référence dans le présent document.
Les systèmes de comptage de gaz ne sont pas abordés dans le présent document.
Zemeljski plin - Določevanje energijske vrednosti (ISO 15112:2018)
Ta dokument zagotavlja sredstva za določevanje energijske vrednosti zemeljskega plina z merjenjem ali izračunom ter opisuje s tem povezane tehnike in ukrepe, ki jih je potrebno sprejeti. Izračun toplotne energije temelji na ločenem merjenju količine (masa ali prostornina) prenesenega plina in njegove izmerjene ali izračunane kalorične vrednosti. Podana so tudi splošna sredstva za izračun negotovosti.
Opisani so samo sistemi, ki se trenutno uporabljajo.
OPOMBA: Za uporabo takšnih sistemov v komercialnem ali uradnem trgovanju je morda potrebna odobritev nacionalnih agencij za izdajo dovoljenj in skladnost z zakonskimi predpisi.
Ta dokument se uporablja za vse merilne postaje za plin od gospodinjskih do velikih postaj z visokotlačnim
prenosom.
Nove tehnike niso izključene, če je dokazano, da delujejo enako dobro ali bolje kot tiste, opisane v tem dokumentu.
Sistemi za merjenje plinov niso predmet tega dokumenta.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2019
1DGRPHãþD
SIST EN ISO 15112:2014
=HPHOMVNLSOLQ'RORþHYDQMHHQHUJLMVNHYUHGQRVWL ,62
Natural gas - Energy determination (ISO 15112:2018)
Gaz naturel - Détermination de l'énergie (ISO 15112:2018)
Ta slovenski standard je istoveten z: EN ISO 15112:2018
ICS:
75.060 Zemeljski plin Natural gas
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 15112
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2018
EUROPÄISCHE NORM
ICS 75.060 Supersedes EN ISO 15112:2014
English Version
Natural gas - Energy determination (ISO 15112:2018)
Gaz naturel - Détermination de l'énergie (ISO
15112:2018)
This European Standard was approved by CEN on 27 October 2018.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15112:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 15112:2018) has been prepared by Technical Committee ISO/TC 193 "Natural
gas" in collaboration with Technical Committee CEN/TC 238 “Test gases, test pressures, appliance
categories and gas appliance types” 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 2019, and conflicting national standards shall be
withdrawn at the latest by June 2019.
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 supersedes EN ISO 15112:2014.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 15112:2018 has been approved by CEN as EN ISO 15112:2018 without any modification.
INTERNATIONAL ISO
STANDARD 15112
Third edition
2018-11
Natural gas — Energy determination
Gaz naturel — Détermination de l'énergie
Reference number
ISO 15112:2018(E)
©
ISO 2018
ISO 15112:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ISO 15112:2018(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and units . 6
5 General Principles. 7
6 Gas measurement . 8
6.1 General . 8
6.2 Volume measurement . 9
6.3 Calorific value measurement . 9
6.3.1 Measurement techniques and sampling . 9
6.3.2 Direct measurement — Calorimetry .10
6.3.3 Inferential measurement .10
6.3.4 Correlation techniques .10
6.3.5 Pressure and temperature .10
6.3.6 Gas quality tracking .10
6.4 Volume conversion .10
6.4.1 General.10
6.4.2 Density .11
6.4.3 Compression factor .11
6.5 Calibration .11
6.6 Data storage and transmission .11
7 Energy determination .12
7.1 Interfaces .12
7.2 Methods of energy determination .14
7.2.1 Direct determination of energy .14
7.2.2 Indirect determination of energy .14
8 Strategy and procedures .16
8.1 General .16
8.2 Strategies for energy determination .17
8.2.1 Strategies for single interfaces .18
8.3 Plausibility checks .22
9 Assignment methods .23
9.1 Fixed assignment .23
9.1.1 Fixed assignment of a measured calorific value .23
9.1.2 Fixed assignment of a declared calorific value .24
9.2 Variable assignment .25
9.2.1 Input at two or more different stations with zero floating point .25
9.2.2 Input at two or more different stations with comingled gas flows .26
9.3 Determination of the representative calorific value .27
9.3.1 Arithmetically averaged calorific value .27
9.3.2 Quantity-weighted average calorific value .27
9.3.3 Gas quality tracking .27
10 Calculation of energy quantities .30
10.1 General formulae for energy .30
10.2 Calculation of averaged values — Calculation from average calorific values and
cumulative volumes .31
10.2.1 Arithmetic average of the calorific value .31
10.2.2 Quantity-weighted average of the calorific value .32
ISO 15112:2018(E)
10.3 Volume and volume-to-mass conversions .32
10.4 Energy determination on the basis of declared calorific values .
...
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