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CEN

EN ISO 14912:2006

(Main)

Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003)

Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003)

ISO 14912:2003 defines the following quantities commonly used to express the composition of gas mixtures: mole fraction, mass fraction and volume fraction, as well as mole concentration, mass concentration and volume concentration.
Relating to these quantities of composition, ISO 14912:2003 provides methods for the conversion between different quantities and the conversion between different state conditions. Conversion between different quantities means calculating the numerical value of an analyte content in terms of one of the quantities listed above from the numerical value of the same analyte content, at the same pressure and temperature of the gas mixture, given in terms of another of these quantities. Conversion between different state conditions means calculating the numerical value of an analyte content, in terms of one of the quantities listed above, under one set of state conditions from the numerical value of the same quantity under another set of state conditions, i.e. pressure and temperature, of the gas mixture. Gas mixture composition can be converted simultaneously between different quantities of composition and different state conditions by combination of the two types of conversion.
ISO 14912:2003 is only applicable to homogeneous and stable gas mixtures. Therefore any state conditions (pressure and temperature) considered need to be well outside from the condensation region of the gas mixture and that of each of the specified analytes.

Gasanalyse - Umrechnung von Zusammensetzungsangaben für Gasgemische (ISO 14912:2003)

Diese Internationale Norm definiert die folgenden Größen, die zur Angabe der Zusammensetzung von
Gasgemischen verwendet werden:
- Stoffmengenanteil,
- Massenanteil,
- Volumenanteil,
sowie
- Stoffmengenkonzentration,
- Massenkonzentration,
- Volumenkonzentration.
Für die genannten Zusammensetzungsgrößen legt diese Internationale Norm Verfahren fest zur
- Umrechnung zwischen verschiedenen Größen, und
- Umrechnung zwischen verschiedenen Zustandsbedingungen.
Umrechnung zwischen verschiedenen Größen bedeutet: Berechnung des Zahlenwerts eines Analytgehalts in
einer der oben genannten Größen aus dem Zahlenwert desselben Analytgehalts, gegeben in einer anderen
dieser Größen, bei gleichem Druck und gleicher Temperatur des Gasgemischs. Umrechnung zwischen
verschiedenen Zustandsbedingungen bedeutet: Berechnung des Zahlenwerts eines Analytgehalts in einer der
oben genannten Größen bei einem Satz von Zustandsbedingungen aus dem Zahlenwert derselben Größe bei
einem anderen Satz von Zustandsbedingungen, d. h. Druck und Temperatur des Gasgemischs. Durch
Kombination dieser beiden Umrechnungsarten kann die Zusammensetzung von Gasgemischen zugleich
zwischen verschiedenen Zusammensetzungsgrößen und verschiedenen Zustandsbedingungen umgerechnet
werden.
Diese Internationale Norm ist nur bei homogenen und stabilen Gasgemischen anwendbar. Deshalb müssen
die betrachteten Zustandsbedingungen mit deutlichem Abstand außerhalb der Kondensationsgebiete des
Gasgemischs sowie jedes der angegeben Analyten liegen (siehe Anhang A).

Analyse des gaz - Conversion des données de composition de mélanges gazeux (ISO 14912:2003)

Analiza plinov – Pretvorba podatkov sestave plinskih zmesi (ISO 14912:2003)

General Information

Status
Published
Publication Date
22-Aug-2006
Withdrawal Date
27-Feb-2007
ICS
71.040.40 - Chemical analysis
Technical Committee
CEN/TC 238 - Test gases, test pressures and categories of appliances
Drafting Committee
CEN/TC 238 - Test gases, test pressures and categories of appliances
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
23-Aug-2006
Due Date
13-Apr-2008
Completion Date
23-Aug-2006
Ref Project
SIST EN ISO 14912:2006 - Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003)

Relations

Corrected By
EN ISO 14912:2006/AC:2007 - Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003/Cor 1:2006)
Effective Date
22-Dec-2008
Revised
prEN ISO 14912 - Gas analysis - Conversion of gas mixture composition data (ISO/DIS 14912:2023)
Effective Date
28-Jan-2023

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 14912:2006
01-november-2006
Analiza plinov – Pretvorba podatkov sestave plinskih zmesi (ISO 14912:2003)
Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003)
Gasanalyse - Umrechnung von Zusammensetzungsangaben für Gasgemische (ISO
14912:2003)
Analyse des gaz - Conversion des données de composition de mélanges gazeux (ISO
14912:2003)
Ta slovenski standard je istoveten z: EN ISO 14912:2006
ICS:
71.040.40
SIST EN ISO 14912:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
EN ISO 14912
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2006
ICS 71.040.40

English Version
Gas analysis - Conversion of gas mixture composition data (ISO
14912:2003)
Analyse des gaz - Conversion des données de composition Gasanalyse - Umrechnung von
de mélanges gazeux (ISO 14912:2003) Zusammensetzungsangaben für Gasgemische (ISO
14912:2003)
This European Standard was approved by CEN on 21 July 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, 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: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14912:2006: E
worldwide for CEN national Members.

---------------------- Page: 2 ----------------------

EN ISO 14912:2006 (E)



Foreword

The text of ISO 14912:2003 has been prepared by Technical Committee ISO/TC 158
"Analysis of gases” of the International Organization for Standardization (ISO) and has been
taken over as EN ISO 14912:2006 by Technical Committee CEN/SS N21 "Gaseous fuels and
combustible gas", the secretariat of which is held by CMC.

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 February 2007, and conflicting national
standards shall be withdrawn at the latest by February 2007.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
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.



Endorsement notice

The text of ISO 14912:2003 has been approved by CEN as EN ISO 14912:2006 without any
modifications.


2

---------------------- Page: 3 ----------------------

INTERNATIONAL ISO
STANDARD 14912
First edition
2003-03-15

Gas analysis — Conversion of gas
mixture composition data
Analyse des gaz — Conversion des données de composition de
mélanges gazeux




Reference number
ISO 14912:2003(E)
©
ISO 2003

---------------------- Page: 4 ----------------------

ISO 14912:2003(E)
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