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EN ISO 8996:2004

(Main)

Ergonomics of the thermal environment - Determination of metabolic rate (ISO 8996:2004)

Ergonomics of the thermal environment - Determination of metabolic rate (ISO 8996:2004)

The metabolic rate, as a conversion of chemical into mechanical and thermal energy, measures the energetic cost of muscular load and gives a numerical index of activity. Metabolic rate is an important determinant of the comfort or the strain resulting from exposure to a thermal environment. In particular, in hot climates, the high levels of metabolic heat production associated with muscular work aggravate heat stress, as large amounts of heat need to be dissipated, mostly by sweat evaporation.
ISO 8996:2004 specifies different methods for the determination of metabolic rate in the context of ergonomics of the climatic working environment. It can also be used for other applications -- for example, the assessment of working practices, the energetic cost of specific jobs or sport activities, the total cost of an activity, etc.

Ergonomie der thermischen Umgebung - Bestimmung des körpereigenen Energieumsatzes (ISO 8996:2004)

Der (körpereigene) Energieumsatz bzw. die körpereigene Energieerzeugung, als Umwandlung von chemischer in mechanische und thermische Energie, ist ein Maß für den Energieaufwand der Muskelarbeit und ermöglicht es, Tätigkeiten eine numerische Kennziffer zuzuordnen. Der Energieumsatz ist eine wichtige Größe bei der Bestimmung des Wohlbefindens oder der Belastung, die sich durch ein warmes Umgebungsklima ergeben können. Besonders in einem sehr warmen Umgebungsklima wird die Wärmebelastung durch das bei der Muskelarbeit auftretende hohe Maß an körpereigener Wärmeerzeugung erhöht, da große Mengen an Wärme hauptsächlich durch das Verdunsten von Schweiß abgegeben werden müssen.
Diese Internationale Norm legt unterschiedliche Verfahren die Bestimmung des Energieumsatzes im Bereich der Ergonomie der klimatischen Arbeitsumgebung fest. Die Internationale Norm kann auch für andere Anwendungsgebiete, zum Beispiel für die Bewertung von Arbeitsverfahren, des Energieaufwands für spezielle Aufgaben oder Sportaktivitäten sowie des Gesamtenergieaufwands einer Tätigkeit usw., angewendet werden.
Die in dieser Internationalen Norm enthaltenen Abschätzungen, Tabellen und anderen Daten beziehen sich auf eine "Durchschnittsperson":
-   einen 30-jährigen Mann mit einem Gewicht von 70 kg und 1,75 m Körpergröße (Körperoberfläche: 1,8 m2);
-   eine 30-jährige Frau mit einem Gewicht von 60 kg und 1,70 m Körpergröße (Körperoberfläche: 1,6 m2).
Die Anwender sollten in Bezug auf besondere Gruppen, Kinder, ältere Personen, Personen mit Körperbehinderungen usw. einbegriffen, entsprechende Korrekturen vornehmen.

Ergonomie de l'environnement thermique - Détermination du métabolisme énergétique (ISO 8996:2004)

Le métabolisme énergétique, transformation d'énergie chimique potentielle en énergie thermique et en énergie mécanique, mesure le coût énergétique de la charge musculaire et constitue un indice quantitatif de l'activité. Le métabolisme énergétique représente un facteur important pour déterminer le confort ou la contrainte résultant de l'exposition à un environnement thermique. Dans les climats chauds notamment, les niveaux élevés de production de chaleur métabolique, associés au travail musculaire, aggravent la contrainte thermique dans la mesure où de grandes quantités de chaleur doivent être dissipées, principalement par évaporation de la sueur.
L'ISO 8996:2004 spécifie différentes méthodes visant à déterminer le métabolisme énergétique dans le domaine de l'ergonomie de l'environnement de travail climatique. Elle peut cependant être également utilisée en vue d'autres applications -- par exemple: l'évaluation des pratiques de travail, le coût énergétique de travaux ou d'activités sportives spécifiques, le coût global de l'activité, etc.

Ergonomija toplotnega okolja – Ugotavljanje presnovne toplote (ISO 8996:2004)

General Information

Status
Withdrawn
Publication Date
30-Sep-2004
Withdrawal Date
21-Dec-2021
ICS
13.180 - Ergonomics
Technical Committee
CEN/TC 122 - Ergonomics
Drafting Committee
CEN/TC 122/WG 11 - Ergonomics of the Physical Environment
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
22-Dec-2021
Ref Project
SIST EN ISO 8996:2005 - Ergonomics of the thermal environment - Determination of metabolic rate (ISO 8996:2004)

Relations

Replaces
EN 28996:1993 - Ergonomics - Determination of metabolic heat production (ISO 8996:1990)
Effective Date
22-Dec-2008
Replaced By
EN ISO 8996:2021 - Ergonomics of the thermal environment - Determination of metabolic rate (ISO 8996:2021)
Effective Date
06-Sep-2017

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SLOVENSKI STANDARD
SIST EN ISO 8996:2005
01-januar-2005
1DGRPHãþD
SIST EN 28996:2001
Ergonomija toplotnega okolja – Ugotavljanje presnovne toplote (ISO 8996:2004)
Ergonomics of the thermal environment - Determination of metabolic rate (ISO
8996:2004)
Ergonomie der thermischen Umgebung - Bestimmung des körpereigenen
Energieumsatzes (ISO 8996:2004)
Ergonomie de l'environnement thermique - Détermination du métabolisme énergétique
(ISO 8996:2004)
Ta slovenski standard je istoveten z: EN ISO 8996:2004
ICS:
13.180 Ergonomija Ergonomics
SIST EN ISO 8996:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 8996:2005

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SIST EN ISO 8996:2005



EUROPEAN STANDARD
EN ISO 8996

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2004
ICS 13.180 Supersedes EN 28996:1993
English version
Ergonomics of the thermal environment - Determination of
metabolic rate (ISO 8996:2004)
Ergonomie de l'environnement thermique - Détermination Ergonomie der thermischen Umgebung - Bestimmung des
du métabolisme énergétique (ISO 8996:2004) körpereigenen Energieumsatzes (ISO 8996:2004)
This European Standard was approved by CEN on 26 August 2004.

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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8996:2004: E
worldwide for CEN national Members.

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SIST EN ISO 8996:2005

EN ISO 8996:2004 (E)





Foreword


This document (EN ISO 8996:2004) 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 April 2005, and conflicting national
standards shall be withdrawn at the latest by April 2005.

This document supersedes EN 28996:1993.

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 8996:2004 has been approved by CEN as EN ISO 8996:2004 without any
modifications.

2

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SIST EN ISO 8996:2005


INTERNATIONAL ISO
STANDARD 8996
Second edition
2004-10-01

Ergonomics of the thermal
environment — Determination of
metabolic rate
Ergonomie de l'environnement thermique — Détermination du
métabolisme énergétique




Reference number
ISO 8996:2004(E)
©
ISO 2004

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SIST EN ISO 8996:2005
ISO 8996:2004(E)
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