EN ISO 7730:2005

Ergonomics of the thermal environment - Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria (ISO 7730:2005)

ISO 7730:2005 presents methods for predicting the general thermal sensation and degree of discomfort (thermal dissatisfaction) of people exposed to moderate thermal environments. It enables the analytical determination and interpretation of thermal comfort using calculation of PMV (predicted mean vote) and PPD (predicted percentage of dissatisfied) and local thermal comfort, giving the environmental conditions considered acceptable for general thermal comfort as well as those representing local discomfort.

Ergonomie der thermischen Umgebung - Analytische Bestimmung und Interpretation der thermischen Behaglichkeit durch Berechnung des PMV- und des PPD-Indexes und Kriterien der lokalen thermischen Behaglichkeit (ISO 7730:2005)

Diese Internationale Norm enthält Verfahren, anhand deren das allgemeine menschliche Wärmeempfinden und der Grad der Unbehaglichkeit (thermischen Unzufriedenheit) von Menschen vorausgesagt werden können, die einem gemäßigten Umgebungsklima ausgesetzt sind. Sie ermöglicht die analytische Bestimmung und Interpretation der thermischen Behaglichkeit durch die Berechnung von PMV (predicted mean vote) und PPD (predicted percentage of dissatisfied) und der örtlichen Kriterien für thermische Behaglichkeit, indem sie die Umgebungsbedingungen, die für den allgemeinen thermischen Komfort sowie die lokale Unbehaglichkeit als akzeptabel betrachtet werden, beschreibt. Die Internationale Norm gilt für gesunde Männer und Frauen, die einem Innenraumklima ausgesetzt sind, durch das ein Gefühl thermischer Behaglichkeit erreicht werden soll, oder in dem es zu moderaten Abweichungen vom Zustand der Behaglichkeit kommt, in der Gestaltung neuer Umgebungen oder der Anpassung existierender. Obwohl diese Norm für die Arbeitsumgebung erstellt wurde, kann sie aber auch für jede andere Art der Umgebung angewendet werden. Für Personen mit besonderen Anforderungen wie solche mit physikalischen Einschränkungen sollte ISO/TS 14415:2005, 4.2 angewendet werden. In nicht klimatisierten Räumen können ethnische und national geografische Abweichungen auftreten.

Ergonomie des ambiances thermiques - Détermination analytique et interprétation du confort thermique par le calcul des indices PMV et PPD et par des critères de confort thermique local (ISO 7730:2005)

L'ISO 7730:2005 présente des méthodes de prévision de la sensation thermique générale et du degré d'inconfort (insatisfaction thermique) général des personnes exposées à des ambiances thermiques modérées. Elle permet de déterminer analytiquement et d'interpréter le confort thermique, par le calcul des indices PMV (vote moyen prévisible) et PPD (pourcentage prévisible d'insatisfaits) et par des critères de confort thermique local, donnant les conditions des ambiances thermiques considérées acceptables du point de vue du confort thermique général et les conditions représentant les inconforts locaux.

Ergonomija toplotnega okolja - Analitično ugotavljanje in interpretacija toplotnega ugodja z izračunom PMV in PPD vrednosti ter merili za lokalno toplotno ugodje (ISO 7730:2005)

General Information

• Status: Published
• Publication Date: 14-Nov-2005
• Withdrawal Date: 30-May-2006
• ICS: 13.180 - Ergonomics
• Technical Committee: CEN/TC 122 - Ergonomics
• Drafting Committee: CEN/TC 122/WG 11 - Ergonomics of the Physical Environment
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 15-Nov-2005
• Completion Date: 15-Nov-2005
• Ref Project: SIST EN ISO 7730:2006 - Ergonomics of the thermal environment - Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria (ISO 7730:2005)

Relations

• Replaces: EN ISO 7730:1995 - Moderate thermal environments - Determination of the PMV and PPD indices and specification of the conditions for thermal comfort (ISO 7730:1994)
• Effective Date: 22-Dec-2008
• Revised: prEN ISO 7730 - Ergonomics of the thermal environment - Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria (ISO/DIS 7730:2023)
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2006
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SIST EN ISO 7730:2001
(UJRQRPLMDWRSORWQHJDRNROMD$QDOLWLþQRXJRWDYOMDQMHLQLQWHUSUHWDFLMDWRSORWQHJD
XJRGMD]L]UDþXQRP309LQ33'YUHGQRVWLWHUPHULOL]DORNDOQRWRSORWQRXJRGMH
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Ergonomics of the thermal environment - Analytical determination and interpretation of
thermal comfort using calculation of the PMV and PPD indices and local thermal comfort
criteria (ISO 7730:2005)
Ergonomie der thermischen Umgebung - Analytische Bestimmung und Interpretation der
thermischen Behaglichkeit durch Berechnung des PMV- und des PPD-Indexes und
Kriterien der lokalen thermischen Behaglichkeit (ISO 7730:2005)
Ergonomie des ambiances thermiques - Détermination analytique et interprétation du
confort thermique par le calcul des indices PMV et PPD et par des criteres de confort
thermique local (ISO 7730:2005)
Ta slovenski standard je istoveten z: EN ISO 7730:2005
ICS:
13.180 Ergonomija Ergonomics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 7730
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2005
ICS 13.180 Supersedes EN ISO 7730:1995
English Version
Ergonomics of the thermal environment - Analytical
determination and interpretation of thermal comfort using
calculation of the PMV and PPD indices and local thermal
comfort criteria (ISO 7730:2005)
Ergonomie des ambiances thermiques - Détermination Ergonomie der thermischen Umgebung - Analytische
analytique et interprétation du confort thermique par le Bestimmung und Interpretation der thermischen
calcul des indices PMV et PPD et par des critères de Behaglichkeit durch Berechnung des PMV- und des PPD-
confort thermique local (ISO 7730:2005) Indexes und Kriterien der lokalen thermischen
Behaglichkeit (ISO 7730:2005)
This European Standard was approved by CEN on 21 October 2005.
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, 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7730:2005: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 7730:2005) has been prepared by Technical Committee ISO/TC 159
"Ergonomics" in collaboration with Technical Committee CEN/TC 122 "Ergonomics", the
secretariat of which is held by DIN.

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 May 2006, and conflicting national standards
shall be withdrawn at the latest by May 2006.

This document supersedes EN ISO 7730:1995.

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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 7730:2005 has been approved by CEN as EN ISO 7730:2005 without any
modifications.
INTERNATIONAL ISO
STANDARD 7730
Third edition
2005-11-15
Ergonomics of the thermal
environment — Analytical determination
and interpretation of thermal comfort
using calculation of the PMV and PPD
indices and local thermal comfort criteria
Ergonomie des ambiances thermiques — Détermination analytique et
interprétation du confort thermique par le calcul des indices PMV et
PPD et par des critères de confort thermique local

Reference number
ISO 7730:2005(E)
©
ISO 2005
ISO 7730:2005(E)
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ii © ISO 2005 – All rights reserved

ISO 7730:2005(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Predicted mean vote (PMV) . 2
5 Predicted percentage dissatisfied (PPD). 4
6 Local thermal discomfort. 6
7 Acceptable thermal environments for comfort. 10
8 Non-steady-state thermal environments. 11
9 Long-term evaluation of the general thermal comfort conditions. 11
10 Adaptation . 12
Annex A (informative) Examples of thermal comfort requirements for different categories of
environment and types of space. 13
Annex B (informative) Metabolic rates of different activities. 18
Annex C (informative) Estimation of thermal insulation of clothing ensembles. 19
Annex D (normative) Computer program for calculating PMV and PPD. 23
Annex E (normative) Tables for determination of predicted mean vote (PMV) . 26
Annex F (informative) Humidity . 44
Annex G (informative) Air velocity. 45
Annex H (informative) Long-term evaluation of the general thermal comfort conditions. 47
Bibliography . 49

ISO 7730:2005(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 7730 was prepared by Technical Committee ISO/TC 159, Ergonomics, Subcommittee SC 5, Ergonomics
of the physical environment.
This third edition cancels and replaces the second edition (ISO 7730:1994), which has been technically
revised. A method for long term evaluation has been added, as well as information on local thermal discomfort,
non-steady-state conditions and adaptation, and an annex stating how thermal comfort requirements can be
expressed in different categories.
iv © ISO 2005 – All rights reserved

ISO 7730:2005(E)
Introduction
This International Standard covering the evaluation of moderate thermal environments was developed in
1)
parallel with the revised ASHRAE standard 55 and is one of a series of ISO documents specifying methods
for the measurement and evaluation of the moderate and extreme thermal environments to which human
beings are exposed (ISO 7243, ISO 7933 and ISO/TR 11079, all three dealing with extreme environmental
conditions, are others in the series).
A human being's thermal sensation is mainly related to the thermal balance of his or her body as a whole.
This balance is influenced by physical activity and clothing, as well as the environmental parameters: air
temperature, mean radiant temperature, air velocity and air humidity. When these factors have been
estimated or measured, the thermal sensation for the body as a whole can be predicted by calculating the
predicted mean vote (PMV). See Clause 4.
The predicted percentage dissatisfied (PPD) index provides information on thermal discomfort or thermal
dissatisfaction by predicting the percentage of people likely to feel too warm or too cool in a given environment.
The PPD can be obtained from the PMV. See Clause 5.
Thermal discomfort can also be caused by unwanted local cooling or heating of the body. The most common
local discomfort factors are radiant temperature asymmetry (cold or warm surfaces), draught (defined as a
local cooling of the body caused by air movement), vertical air temperature difference, and cold or warm floors.
Clause 6 specifies how to predict the percentage dissatisfied owing to local discomfort parameters.
Dissatisfaction can be caused by hot or cold discomfort for the body as a whole. Comfort limits can in this
case be expressed by the PMV and PPD indices. But thermal dissatisfaction can also be caused by local
thermal discomfort parameters. Clause 7 deals with acceptable thermal environments for comfort.
Clauses 6 and 7 are based mainly on steady-state conditions. Means of evaluating non-steady-state
conditions such as transients (temperature steps), cycling temperatures or temperature ramps are presented
in Clause 8. The thermal environments in buildings or at workplaces will change over time and it might not
always be possible to keep conditions within recommended limits. A method for long-term evaluation of
thermal comfort is given in Clause 9.
Clause 10 gives recommendations on how to take into account the adaptation of people when evaluating and
designing buildings and systems.

1) American Society of Heating, Refrigerating and Air-conditioning Engineers.
INTERNATIONAL STANDARD ISO 7730:2005(E)

Ergonomics of the thermal environment — Analytical
determination and interpretation of thermal comfort using
calculation of the PM
...