ISO 7726

Ergonomics of the thermal environment — Instruments for measuring and monitoring physical quantities

Ergonomie des ambiances thermiques — Appareils et méthodes de mesure et de surveillance des grandeurs physiques

General Information

• Status: Not Published
• ICS: 13.180 - Ergonomics
• Technical Committee: ISO/TC 159/SC 5 - Ergonomics of the physical environment
• Drafting Committee: ISO/TC 159/SC 5/WG 1 - Thermal environments
• Current Stage: 6000 - International Standard under publication
• Start Date: 16-Aug-2025
• Completion Date: 23-Aug-2025

Relations

• Revises: ISO 7726:1998 - Ergonomics of the thermal environment — Instruments for measuring physical quantities
• Effective Date: 23-Apr-2020

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 7726
ISO/TC 159/SC 5
Ergonomics of the thermal
Secretariat: BSI
environment — Instruments for
Voting begins on:
measuring and monitoring physical
2025-06-20
quantities
Voting terminates on:
2025-08-15
Ergonomie des ambiances thermiques — Appareils et méthodes
de mesure et de surveillance des grandeurs physiques
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 7726:2025(en) © ISO 2025

FINAL DRAFT
ISO/FDIS 7726:2025(en)
International
Standard
ISO/FDIS 7726
ISO/TC 159/SC 5
Ergonomics of the thermal
Secretariat: BSI
environment — Instruments for
Voting begins on:
measuring and monitoring physical
quantities
Voting terminates on:
Ergonomie des ambiances thermiques — Appareils et méthodes
de mesure et de surveillance des grandeurs physiques
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 SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 7726:2025(en) © ISO 2025

ii
ISO/FDIS 7726:2025(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviation . 1
5 General . 2
5.1 Specifications and methods .2
5.2 The heat exchanges between human body system and its environment .2
6 Physical quantities characterizing heat exchanges . 3
6.1 General .3
6.2 Basic physical quantities .3
6.2.1 Quantities .3
6.2.2 Air temperature .3
6.2.3 Radiation .3
6.2.4 Plane radiant temperature .4
6.2.5 Dew point temperature .4
6.2.6 Relative humidity .4
6.2.7 Surface temperature .4
6.2.8 Air velocity . . .4
6.2.9 Globe temperature .4
6.2.10 Psychrometric wet-bulb temperature .4
6.2.11 Natural wet-bulb temperature .4
6.3 Derived physical quantities .5
6.3.1 General .5
6.3.2 Mean radiant temperature .5
6.3.3 Radiant temperature asymmetry .5
6.3.4 Operative temperature .5
6.3.5 Water vapour partial pressure .5
6.3.6 Humidity ratio .6
6.3.7 Turbulence intensity .6
7 The characteristics of physical quantity measuring instruments . 6
7.1 General .6
7.2 Characteristics of instruments for measuring the basic quantities .6
7.3 Characteristics of integrating types of measuring instruments .8
8 Specifications relating to measuring methods . 9
8.1 General .9
8.2 Specifications relating to variations in the physical quantities within the space
surrounding the subject .9
8.3 Specifications relating to the variations in the physical quantities with time .10
9 Specifications relating to monitoring methods .11
10 Measurement uncertainty .11
11 Specifications related to the processing of measurement results .12
11.1 Spatial maps of measured data . 12
Annex A (informative) Measurement of air temperature .13
Annex B (informative) Measurement and calculation of the mean radiant temperature .15
Annex C (informative) Measurement of plane radiant temperature .26
Annex D (informative) Measurement of the absolute humidity of the air .32

iii
ISO/FDIS 7726:2025(en)
Annex E (informative) Measurement of air velocity .39
Annex F (informative) Measurement of surface temperature .42
Annex G (informative) Measurement of operative temperature .44
Annex H (informative) Measurement of the natural wet-bulb temperature .46
Bibliography .48

iv
ISO/FDIS 7726:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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
...

ISO/FDIS 7726
ISO/TC 159/SC 5
Secretariat: BSI
Date: 2025-06-06
Ergonomics of the thermal environment — Instruments for
measuring and monitoring physical quantities
Ergonomie des ambiances thermiques — Appareils et méthodes de mesure et de surveillance des grandeurs
physiques
FDIS stage
IISSOO//DDIISS 77772266::22002233((EE))

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
E-mail: [e-mail]
Website: www.iso.org
Published in Switzerland
DDRRAAFFTT IINTNTEERRNANATTIIOONANALL SSTATANDNDAARDRD IISSOO//DDIISS 77772266::22002233((EE))

IISSOO//DDIISS 77772266::22002233((EE))

Contents Page
Foreword . 6
Introduction . 8
1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 11
4 Symbols and abbreviation . 12
5 General. 13
5.1 Specifications and methods . 13
5.2 The heat exchanges between human body system and its environment . 13
6 Physical quantities characterizing heat exchanges . 14
6.1 General. 14
6.2 Basic physical quantities . 14
6.3 Derived physical quantities . 17
7 The characteristics of physical quantity measuring instruments . 19
7.1 General. 19
7.2 Characteristics of instruments for measuring the basic quantities . 19
7.3 Characteristics of integrating types of measuring instruments . 23
8 Specifications relating to measuring methods . 23
8.1 General. 23
8.2 Specifications relating to variations in the physical quantities within the space surrounding
the subject . 24
8.3 Specifications relating to the variations in the physical quantities with time . 25
9 Specifications relating to monitoring methods . 27
10 Measurement uncertainty . 27
11 Specifications related to the processing of measurement results . 28
11.1 Spatial maps of measured data . 30
Annex A (informative) Measurement of air temperature . 31
Annex B (informative) Measurement and calculation of the mean radiant temperature . 35
Annex C (informative) Measurement of plane radiant temperature . 56
Annex D (informative) Measurement of the absolute humidity of the air . 68
Annex E (informative) Measurement of air velocity . 80
Annex F (informative) Measurement of surface temperature . 87
Annex G (informative) Measurement of operative temperature . 91
Annex H (informative) Measurement of the natural wet-bulb temperature . 94
Bibliography . 2

DDRRAAFFTT IINTNTEERRNANATTIIOONANALL SSTATANDNDAARDRD IISSOO//DDIISS 77772266::22002233((EE))

IISSOO//DDIISS 77772266::22002233((EE))

Foreword
ISO (the 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
document 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
ISO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s).
ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect
thereof. As of the date of publication of this document, ISO [had/had not] received notice of (a) patent(s) which may
be required to implement this document. However, implementers are cautioned that this may not represent the
latest information, which may be obtained from the patent database available at www.iso.org/patents. ISO shall not
be held responsible for identifying any or all such patent rights.
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.
Field Code Changed
This document was prepared by Technical Committee ISO/TC 159, Ergonomics, Subcommittee SC 5, Ergonomics of
the physical environment, in collaboration with the European Committee for Standardization (CEN) Technical
Committee CEN/TC 122, Ergonomics, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 7726:20011998), which has been technically
revised.
The main changes are as follows:

— a) the physical quantities characterizing heat exchanges between a system and its environment have been
divided into basic and derived. The basic quantities (like air temperature, irradiation and plane radiant
temperature) are measured directly, while the derived quantities (like mean radiant temperature, operative
temperature, humidity ratio, etc.) are measured indirectly. (see 6.16.1 and 6.26.2););

— b) the concept of measurement uncertainty has been introduced (see Clause 11Clause 11).).

DDRRAAFFTT IINTNTEERRNANATTIIOONANALL SSTATANDNDAARDRD IISSOO//DDIISS 77772266::22002233((EE))

Any feedback or questions on this document should be directed to the user’s national standards body. A complete
listing of these bodies can be found at www.iso.org/members.html.
Field Code Changed
IISSOO//DDIISS 77772266::22002233((EE))

Introduction
This document is one of thea group of International Standards on the ergonomics of the thermal environment
intended for use in the study of thermal environments.

This group of International Standards deals in particular withcovers:

— the finalization of definitions for the terms to be used in the methods of measurement, testing or interpretation,
taking into account standards already in existence or in the process of being drafted;

— the laying down of specifications relating to the methods for measuring the physical quantities which
characterize thermal environments;

— the selection of one or more methods for interpreting the parameters;

— the specification of recommended values or limits of exposure for the thermal environments coming within the
comfort range and for extreme environments (both hot and cold);

— the specification of methods for measuring the efficiency of devices or processes for personal or collective
protection from heat or cold.
The aim of this group of standards is simply to standardize the process of recording information leading to the
determination of values of physical quantities. Other International Standards give details of the methods
makingthat make use of the information obtained in accordance with this standard.

This International Standarddocument can be used as a reference when establishing:
a) a) specifications for manufacturers and users of instruments for measuring the physical quantities of the
environment;
c)b) b) a written contract between two parties for the measurement of these quantities.
It applies to the influence of hot, moderate, comfortable or cold environments on people. This Standarddocument
is applied in the cases in whichwherein comfort or human strain are the main concern.

DDRRAAFFTT IINTNTEERRNANATTIIOONANALL SSTATANDNDAARDRD IISSOO//DDIISS 77772266::22002233((EE))

Any measuring instrument which achieves the accuracy indicated in this International Standarddocument may be
used.
The description or listing of certain instruments in the annexes can only signifysignifies that they are
"recommended", since characteristics of these instruments maycan vary according to the measuring principle, their
construction and the way in which they are used. It is up to users to compare the quality of the instruments available
on the market at any given moment and to check that they conform to the specifications contained in this
International Standarddocument.

ISO/FDIS 7726:2025(en)
x
IISSOO//DDIISS 77772266::22002233((EE))
Ergonomics of the thermal environment — Instruments for measuring
and monitoring physical quantities

31 1 Scope
This International Standarddocument specifies the minimum characteristics of instruments for measuring physical
quantities characterizing an environment, as well as the methods for measuring the physical quantities of this
environment.
52 2 Normative references
The following document,documents are referred to in wholethe text in such a way that some or in part, is
normatively referenced in all of their content constitutes requirements of this document and is indispensable for
its application. For dated referencsreferences, only the edition cited applies. For undated referencereferences, the
latest edition of the referenced document (including any amendments) applies.

ISO 13731, Ergonomics of the thermal environment — Vocabulary and symbols

83 3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 13731 apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obphttps:// www .iso .org/ obp

— IEC Electropedia: available at https://www.electropedia.org/https:// www .electropedia .org/

©© I ISSOO 22002233 –– AAll rll riigghhtts s

IISSOO//DDIISS 77772266::22002233((EE))
104 4 Symbols and abbreviation

For the purposes of this document, the symbols and units listed in Table 1Table 1 apply.

Table 1 — Symbols and units
Symbol Term Unit
Apr surface area projected on one direction m
Ar total radiant surface area m
-2
C convective heat flow W·m
-2
C respiratory convective heat flow W·m
res
-2
E evaporative heat flow at the skin W·m
-2
E respiratory evaporative heat flow W·m
res
-2
K conductive heat flow W·m
-2
M metabolic rate W·m
p atmospheric pressure Pa
p water
...

PROJET FINAL
Norme
internationale
ISO/FDIS 7726
ISO/TC 159/SC 5
Ergonomie des ambiances
Secrétariat: BSI
thermiques — Appareils et
Début de vote:
méthodes de mesure et de
2025-06-20
surveillance des grandeurs
Vote clos le:
physiques
2025-08-15
Ergonomics of the thermal environment — Instruments for
measuring and monitoring physical quantities
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
NORMES POUVANT
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
Numéro de référence
ISO/FDIS 7726:2025(fr) © ISO 2025

PROJET FINAL
ISO/FDIS 7726:2025(fr)
Norme
internationale
ISO/FDIS 7726
ISO/TC 159/SC 5
Ergonomie des ambiances
Secrétariat: BSI
thermiques — Appareils et
Début de vote:
méthodes de mesure et de
2025-06-20
surveillance des grandeurs
Vote clos le:
physiques
2025-08-15
Ergonomics of the thermal environment — Instruments for
measuring and monitoring physical quantities
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
DOCUMENT PROTÉGÉ PAR COPYRIGHT
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
© ISO 2025 INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
NORMES POUVANT
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse Numéro de référence
ISO/FDIS 7726:2025(fr) © ISO 2025

ii
ISO/FDIS 7726:2025(fr)
Sommaire Page
Avant-propos .v
Introduction .vi
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Symboles et abréviations . 1
5 Généralités . 2
5.1 Spécifications et méthodes .2
5.2 Les échanges de chaleur entre le système du corps humain et son environnement .2
6 Grandeurs physiques caractérisant les échanges de chaleur . 3
6.1 Généralités .3
6.2 Grandeurs physiques fondamentales .3
6.2.1 Grandeurs .3
6.2.2 Température de l’air .3
6.2.3 Rayonnement .4
6.2.4 Température de rayonnement plan .4
6.2.5 Température du point de rosée .4
6.2.6 Humidité relative .4
6.2.7 Température de surface .4
6.2.8 Vitesse de l’air .4
6.2.9 Température de globe noir .4
6.2.10 Température humide au psychromètre .4
6.2.11 Température humide naturelle .5
6.3 Grandeurs physiques dérivées .5
6.3.1 Généralités .5
6.3.2 Température moyenne de rayonnement .5
6.3.3 Asymétrie de la température de rayonnement .5
6.3.4 Température opérative .6
6.3.5 Pression partielle de vapeur d’eau .6
6.3.6 Rapport d’humidité .6
6.3.7 Intensité de turbulence.6
7 Les caractéristiques des instruments de mesure de grandeurs physiques . 6
7.1 Généralités .6
7.2 Caractéristiques des instruments de mesure des grandeurs fondamentales .6
7.3 Caractéristiques des appareils de mesure du type intégrant .10
8 Spécifications relatives aux méthodes de mesure . 10
8.1 Généralités .10
8.2 Spécifications relatives aux variations des grandeurs physiques dans l’espace
entourant le sujet.10
8.3 Spécifications relatives aux variations des grandeurs physiques dans le temps .11
9 Spécifications relatives aux méthodes de surveillance .12
10 Incertitude de mesure.12
11 Spécifications relatives au traitement des résultats du mesurage .13
11.1 Cartes spatiales des données mesurées .14
Annexe A (informative) Mesurage de la température de l’air .15
Annexe B (informative) Mesurage et calculs de la température moyenne de rayonnement . 17
Annexe C (informative) Mesurage de la température de rayonnement plan .28
Annexe D (informative) Mesurage de l’humidité absolue de l’air .34

iii
ISO/FDIS 7726:2025(fr)
Annexe E (informative) Mesurage de la vitesse de l’air . 41
Annexe F (informative) Mesurage de la température de surface .44
Annexe G (informative) Mesurage de la température opérative .46
Annexe H (informative) Mesurage de la température humide naturelle .48
Bibliographie .50

iv
ISO/FDIS 7726:2025(fr)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes nationaux
de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est en général
confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude a le droit de faire
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gouvernementales, en liaison avec l’ISO participent également aux travaux. L’ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d’approbation requis pour les différents types de documents ISO. Le présent document
a été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2
(voir www.iso.org/directives).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner l’utilisation
d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à l’applicabilité de
tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l’ISO n’avait pas
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il y a lieu d’avertir les responsables de la mise en application du présent document que des informations
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Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
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Pour une explication de la nature volontaire des normes, la signification de
...