IEC TS 62720:2013
(Main)Identification of units of measurement for computer-based processing
Identification of units of measurement for computer-based processing
IEC/TS 62720:2013 specifies identifiers for units to support computer-based processing of product data. It provides a survey of quantities with associated collections of internationally standardized as well as non-standardized units used in business and science. It concerns any standard or non-standard units of measure currently in use, in two or more distinct ethno-linguistic groups or nations, at least in one domain of industry, for which an explicit method of conversion to a known standard unit of measure or its equivalent is well documented or evident from external references.
Identification des unités de mesure pour le traitement assisté par ordinateur
La CEI/TS 62720:2013 spécifie les identificateurs d'unités pour prendre en charge le traitement informatique de données de produit. Elle fournit un relevé des grandeurs avec les ensembles associés d'unités tant normalisées à l'échelle internationale que non-normalisées utilisées dans le métier. Elle inclut toutes les unités normalisées ou non-normalisées actuellement en usage, dans au moins deux groupes linguistiques ou nationalités différent(e)s, dont la méthode de conversion dans une unité de mesure connue ou son équivalent est bien documentée ou évidente d'après les références externes.
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IEC/TS 62720 ®
Edition 1.0 2013-05
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Identification of units of measurement for computer-based processing
Identification des unités de mesure pour le traitement assisté par ordinateur
IEC/TS 62720:2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les
microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
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by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.
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A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
Liens utiles:
Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
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contactez-nous: csc@iec.ch.
IEC/TS 62720 ®
Edition 1.0 2013-05
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Identification of units of measurement for computer-based processing
Identification des unités de mesure pour le traitement assisté par ordinateur
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 01.060; 35.240.50 ISBN 978-2-83220-823-6
– 2 – TS 62720 IEC:2013
CONTENTS
FOREWORD . 12
INTRODUCTION . 14
1 Scope . 15
2 Normative references . 15
3 Terms and definitions . 15
4 Relations between quantities, units and their systems . 21
4.1 General . 21
4.2 The International System of Quantities and the International System of Units . 21
4.3 Other systems of quantities and units . 23
4.4 Context of units, quantities, and systems of units . 23
5 SI prefixes and SI prefix symbols. 24
5.1 General . 24
5.2 Formation of multiples and factors to the base of 10 . 24
5.3 Formation of multiples to the base of 2 . 25
5.4 Usage of SI prefixes and SI prefix symbols . 25
5.4.1 General . 25
5.4.2 Combination of SI prefixes, SI prefix symbols, names of units and
symbols for units . 25
5.4.3 Use of power exponentials in conjunction with SI prefixes, SI prefix
symbols, names of units or symbols for units. . 26
5.4.4 Restrictions on combining SI prefixes, SI prefix symbols, names of
units and symbols for units . 26
5.5 Selecting SI prefixes and SI prefix symbols . 26
6 Data sources of units . 26
7 Identification of units . 27
Annex A (informative) Information about units . 28
Annex B (normative) Identifiers for units and quantities that are derived from the SI
system of units . 29
Annex C (normative) Identifiers for units and quantities that are not derived from the
SI system of units . 127
Annex D (normative) Identifiers for unit systems . 163
Annex E (informative) XML representation of units . 164
Bibliography . 260
Figure 1 – Overview about the relationships between the tables contained in the
annexes . 23
Figure 2 – International registration data identifier (IRDI), Source: ISO 11179-6:2005 . 27
Figure B.1 – Structure of table headers. 29
Figure C.1 – Structure of table headers . 127
Table 1 – Concepts for quantities. 16
Table 2 – Base quantity and base unit . 17
Table 3 – Base quantities . 19
Table 4 – Base quantities and base units in the International System of Units . 22
Table 5 – Representation of base quantities in the International System of Units [34] . 22
TS 62720 IEC:2013 – 3 –
Table 6 – Formation of multiples and factors of units to the base of 10 . 24
Table 7 – Formation of multiples of units to the base of 2 . 25
Table 8 – Units that are used without prefixes or prefix symbols . 26
Table B.1 – Absorbed dose . 29
Table B.2 – Absorbed dose rate . 30
Table B.3 – Acceleration . 30
Table B.4 – Active power . 31
Table B.5 – Amount of substance . 32
Table B.6 – Amount of substance concentration. 32
Table B.7 – Angular acceleration . 33
Table B.8 – Angular cross-section . 33
Table B.9 – Angular momentum . 33
Table B.10 – Angular velocity . 34
Table B.11 – Angular wave number . 34
Table B.12 – Apparent power . 34
Table B.13 – Areic bit density . 35
Table B.14 – Areic charge density . 35
Table B.15 – Areic mass . 36
Table B.16 – Avogadro constant . 36
Table B.17 – Bandwidth distance product . 36
Table B.18 – Battery capacity . 37
Table B.19 – Bit rate . 37
Table B.20 – Burst factor . 37
Table B.21 – Byte rate . 38
Table B.22 – Capacitance . 38
Table B.23 – Catalytic activity . 39
Table B.24 – Catalytic activity concentration . 39
Table B.25 – Celsius temperature . 40
Table B.26 – Compressibility . 40
Table B.27 – Conductivity . 40
Table B.28 – Cross-section . 41
Table B.29 – Dataset of bits . 41
Table B.30 – Dataset of bytes . 42
Table B.31 – Density .
...
IEC/TS 62720 ®
Edition 1.0 2013-05
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Identification of units of measurement for computer-based processing
Identification des unités de mesure pour le traitement assisté par ordinateur
IEC/TS 62720:2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les
microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
Useful links:
IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.
IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: csc@iec.ch.
A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
Liens utiles:
Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.
Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur
Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions
contactez-nous: csc@iec.ch.
IEC/TS 62720 ®
Edition 1.0 2013-05
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Identification of units of measurement for computer-based processing
Identification des unités de mesure pour le traitement assisté par ordinateur
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 01.060; 35.240.50 ISBN 978-2-83220-823-6
– 2 – TS 62720 IEC:2013
CONTENTS
FOREWORD . 12
INTRODUCTION . 14
1 Scope . 15
2 Normative references . 15
3 Terms and definitions . 15
4 Relations between quantities, units and their systems . 21
4.1 General . 21
4.2 The International System of Quantities and the International System of Units . 21
4.3 Other systems of quantities and units . 23
4.4 Context of units, quantities, and systems of units . 23
5 SI prefixes and SI prefix symbols. 24
5.1 General . 24
5.2 Formation of multiples and factors to the base of 10 . 24
5.3 Formation of multiples to the base of 2 . 25
5.4 Usage of SI prefixes and SI prefix symbols . 25
5.4.1 General . 25
5.4.2 Combination of SI prefixes, SI prefix symbols, names of units and
symbols for units . 25
5.4.3 Use of power exponentials in conjunction with SI prefixes, SI prefix
symbols, names of units or symbols for units. . 26
5.4.4 Restrictions on combining SI prefixes, SI prefix symbols, names of
units and symbols for units . 26
5.5 Selecting SI prefixes and SI prefix symbols . 26
6 Data sources of units . 26
7 Identification of units . 27
Annex A (informative) Information about units . 28
Annex B (normative) Identifiers for units and quantities that are derived from the SI
system of units . 29
Annex C (normative) Identifiers for units and quantities that are not derived from the
SI system of units . 127
Annex D (normative) Identifiers for unit systems . 163
Annex E (informative) XML representation of units . 164
Bibliography . 260
Figure 1 – Overview about the relationships between the tables contained in the
annexes . 23
Figure 2 – International registration data identifier (IRDI), Source: ISO 11179-6:2005 . 27
Figure B.1 – Structure of table headers. 29
Figure C.1 – Structure of table headers . 127
Table 1 – Concepts for quantities. 16
Table 2 – Base quantity and base unit . 17
Table 3 – Base quantities . 19
Table 4 – Base quantities and base units in the International System of Units . 22
Table 5 – Representation of base quantities in the International System of Units [34] . 22
TS 62720 IEC:2013 – 3 –
Table 6 – Formation of multiples and factors of units to the base of 10 . 24
Table 7 – Formation of multiples of units to the base of 2 . 25
Table 8 – Units that are used without prefixes or prefix symbols . 26
Table B.1 – Absorbed dose . 29
Table B.2 – Absorbed dose rate . 30
Table B.3 – Acceleration . 30
Table B.4 – Active power . 31
Table B.5 – Amount of substance . 32
Table B.6 – Amount of substance concentration. 32
Table B.7 – Angular acceleration . 33
Table B.8 – Angular cross-section . 33
Table B.9 – Angular momentum . 33
Table B.10 – Angular velocity . 34
Table B.11 – Angular wave number . 34
Table B.12 – Apparent power . 34
Table B.13 – Areic bit density . 35
Table B.14 – Areic charge density . 35
Table B.15 – Areic mass . 36
Table B.16 – Avogadro constant . 36
Table B.17 – Bandwidth distance product . 36
Table B.18 – Battery capacity . 37
Table B.19 – Bit rate . 37
Table B.20 – Burst factor . 37
Table B.21 – Byte rate . 38
Table B.22 – Capacitance . 38
Table B.23 – Catalytic activity . 39
Table B.24 – Catalytic activity concentration . 39
Table B.25 – Celsius temperature . 40
Table B.26 – Compressibility . 40
Table B.27 – Conductivity . 40
Table B.28 – Cross-section . 41
Table B.29 – Dataset of bits . 41
Table B.30 – Dataset of bytes . 42
Table B.31 – Density .
...
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