EN ISO 80000-1:2022

Quantities and units - Part 1: General (ISO 80000-1:2022)

EN ISO 80000-1:2022

Name:EN ISO 80000-1:2022   Standard name:Quantities and units - Part 1: General (ISO 80000-1:2022)
Standard number:EN ISO 80000-1:2022   language:English language
Release Date:13-Dec-2022   technical committee:CEN/SS F02 - Units and symbols
Drafting committee:CEN/SS F02 - Units and symbols   ICS number:01.060 - Quantities and units

SLOVENSKI STANDARD
01-marec-2023
Nadomešča:
SIST EN ISO 80000-1:2013
SIST ISO 80000-1:2013
Veličine in enote - 1. del: Splošno (ISO 80000-1:2022)
Quantities and units - Part 1: General (ISO 80000-1:2022)
Größen und Einheiten – Teil 1: Allgemeines (ISO 80000-1:2022)
Grandeurs et unités - Partie 1 : Généralités (ISO 80000-1:2022)
Ta slovenski standard je istoveten z: EN ISO 80000-1:2022
ICS:
01.060 Veličine in enote Quantities and units
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 80000-1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 01.060 Supersedes EN ISO 80000-1:2013
English Version
Quantities and units - Part 1: General (ISO 80000-1:2022)
Grandeurs et unités - Partie 1: Généralités (ISO 80000- Größen und Einheiten - Teil 1: Allgemeines (ISO
1:2022) 80000-1:2022)
This European Standard was approved by CEN on 2 December 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 80000-1:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 80000-1:2022) has been prepared by Technical Committee ISO/TC 12
"Quantities and units" in collaboration with CCMC.
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 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
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 80000-1:2013.
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 80000-1:2022 has been approved by CEN as EN ISO 80000-1:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 80000-1
Second edition
2022-12
Quantities and units —
Part 1:
General
Grandeurs et unités —
Partie 1: Généralités
Reference number
ISO 80000-1:2022(E)
ISO 80000-1:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: [email protected]
Website: www.iso.org
Published in Switzerland
ii
ISO 80000-1:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Quantities . 1
4.1 The concept of quantity . 1
4.2 System of quantities ─ Base quantities and derived quantities . 2
4.3 Universal constants and empirical constants . 2
4.4 Constant multipliers in quantity equations. 3
4.5 International System of Quantities, ISQ . 3
5 Dimensions .3
6 Units. 5
6.1 General . 5
6.2 Units and numerical values . 5
6.3 Mathematical operations . 5
6.4 Quantity equations and numerical value equations . 6
6.5 Coherent systems of units . 7
7 Printing rules .7
7.1 Symbols for quantities . 7
7.1.1 General . 7
7.1.2 Subscripts . 7
7.1.3 Combination of symbols for quantities . 8
7.1.4 Expressions for quantities . 9
7.1.5 Expressions for dimensions . 10
7.2 Numbers . 10
7.2.1 General . 10
7.2.2 Decimal sign . 10
7.2.3 Multiplication and division . 11
7.2.4 Error and uncertainty .12
7.3 Chemical elements and nuclides . 13
7.4 Greek alphabet . 14
Annex A (normative) Specific terms used for quantities .15
Annex B (normative) Rounding of numbers .19
Bibliography .22
iii
ISO 80000-1:2022(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 12, Quantities and units, in collaboration
with IEC/TC 25, Quantities and units.
This second edition cancels the first edition (ISO 80000-1:2009), which has been technically revised. It
also incorporates the Technical Corrigendum ISO 80000-1:2009/Cor.1:2011.
The main changes are as follows:
— More focus on concepts and terminology based on a system of quantiti
...

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