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CEN

prEN ISO 14912

(Main)

Gas analysis - Conversion of gas mixture composition data (ISO/DIS 14912:2023)

Gas analysis - Conversion of gas mixture composition data (ISO/DIS 14912:2023)

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/DIS 14912:2023)

Analyse des gaz - Conversion des données de composition de mélanges gazeux (ISO/DIS 14912:2023)

Analiza plinov - Pretvorba podatkov o sestavi plinskih zmesi (ISO/DIS 14912:2023)

General Information

Status
Not Published
Publication Date
02-Mar-2025
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
4060 - Closure of enquiry - Enquiry
Start Date
23-Oct-2023
Completion Date
23-Oct-2023
Ref Project
oSIST prEN ISO 14912:2023 - Gas analysis - Conversion of gas mixture composition data (ISO/DIS 14912:2023)

Relations

Revises
EN ISO 14912:2006/AC:2007 - Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003/Cor 1:2006)
Effective Date
28-Jan-2023
Revises
EN ISO 14912:2006 - Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003)
Effective Date
28-Jan-2023

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SLOVENSKI STANDARD
oSIST prEN ISO 14912:2023
01-september-2023
Analiza plinov - Pretvorba podatkov o sestavi plinskih zmesi (ISO/DIS 14912:2023)
Gas analysis - Conversion of gas mixture composition data (ISO/DIS 14912:2023)
Gasanalyse - Umrechnung von Zusammensetzungsangaben für Gasgemische (ISO/DIS
14912:2023)
Analyse des gaz - Conversion des données de composition de mélanges gazeux
(ISO/DIS 14912:2023)
Ta slovenski standard je istoveten z: prEN ISO 14912
ICS:
71.040.40 Kemijska analiza Chemical analysis
oSIST prEN ISO 14912:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 14912:2023

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oSIST prEN ISO 14912:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14912
ISO/TC 158 Secretariat: SAC
Voting begins on: Voting terminates on:
2023-07-31 2023-10-23
Gas analysis — Conversion of gas mixture composition data
Analyse des gaz — Conversion des données de composition de mélanges gazeux
ICS: 71.040.40
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 14912:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

---------------------- Page: 3 ----------------------
oSIST prEN ISO 14912:2023
ISO/DIS 14912:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14912
ISO/TC 158 Secretariat: SAC
Voting begins on: Voting terminates on:

Gas analysis — Conversion of gas mixture composition data
Analyse des gaz — Conversion des données de composition de mélanges gazeux
ICS: 71.040.40
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 14912:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

---------------------- Page: 4 ----------------------
oSIST prEN ISO 14912:2023
ISO/DIS 14912:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions .
...

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