prEN ISO 14505-2
(Main)Ergonomics of the thermal environment - Evaluation of thermal environments in vehicles - Part 2: Determination of equivalent temperature (ISO/DIS 14505-2:2025)
Ergonomics of the thermal environment - Evaluation of thermal environments in vehicles - Part 2: Determination of equivalent temperature (ISO/DIS 14505-2:2025)
ISO 14505-2:2006 provides guidelines for the assessment of the thermal conditions inside a vehicle compartment. It can also be applied to other confined spaces with asymmetric climatic conditions. It is primarily intended for assessment of thermal conditions, when deviations from thermal neutrality are relatively small. Appropriate methodology as given in ISO 14505-2:2006 can be chosen for inclusion in specific performance standards for testing of HVAC-systems for vehicles and similar confined spaces.
Ergonomie der thermischen Umgebung - Beurteilung der thermischen Umgebung in Fahrzeugen - Teil 2: Bestimmung der Äquivalenttemperatur (ISO/DIS 14505-2:2025)
Ergonomie des ambiances thermiques - Évaluation des ambiances thermiques dans les véhicules - Partie 2: Détermination de la température équivalente (ISO/DIS 14505-2:2025)
L'ISO 14505-2:2006 donne des lignes directrices relatives à l'évaluation des conditions thermiques à l'intérieur d'un habitacle de véhicule. Elle peut également s'appliquer à d'autres espaces confinés où règnent des conditions climatiques asymétriques. Elle est essentiellement destinée à l'évaluation des conditions thermiques, lorsque les écarts par rapport à la neutralité thermique sont relativement faibles. L'une des méthodes appropriées décrite dans l'ISO 14505-2:2006 peut être choisie pour être incluse dans des normes de performance spécifiques en vue d'essayer les systèmes de chauffage, de ventilation et de climatisation (système CVCA) des véhicules et les espaces confinés analogues.
Ergonomija toplotnega okolja - Vrednotenje toplotnega okolja v vozilih - 2. del: Ugotavljanje ekvivalentne temperature (ISO/DIS 14505-2:2025)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2025
Ergonomija toplotnega okolja - Vrednotenje toplotnega okolja v vozilih - 2. del:
Ugotavljanje ekvivalentne temperature (ISO/DIS 14505-2:2025)
Ergonomics of the thermal environment - Evaluation of thermal environments in vehicles
- Part 2: Determination of equivalent temperature (ISO/DIS 14505-2:2025)
Ergonomie der thermischen Umgebung - Beurteilung der thermischen Umgebung in
Fahrzeugen - Teil 2: Bestimmung der Äquivalenttemperatur (ISO/DIS 14505-2:2025)
Ergonomie des ambiances thermiques - Évaluation des ambiances thermiques dans les
véhicules - Partie 2: Détermination de la température équivalente (ISO/DIS 14505-
2:2025)
Ta slovenski standard je istoveten z: prEN ISO 14505-2
ICS:
13.180 Ergonomija Ergonomics
43.020 Cestna vozila na splošno Road vehicles in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
International
Standard
ISO/DIS 14505-2
ISO/TC 159/SC 5
Ergonomics of the thermal
Secretariat: BSI
environment — Evaluation of
Voting begins on:
thermal environments in vehicles —
2025-05-01
Part 2:
Voting terminates on:
2025-07-24
Determination of equivalent
temperature
Ergonomie des ambiances thermiques — Évaluation des
ambiances thermiques dans les véhicules —
Partie 2: Détermination de la température équivalente
ICS: 13.180; 43.020
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Reference number
ISO/DIS 14505-2:2025(en)
DRAFT
ISO/DIS 14505-2:2025(en)
International
Standard
ISO/DIS 14505-2
ISO/TC 159/SC 5
Ergonomics of the thermal
Secretariat: BSI
environment — Evaluation of
Voting begins on:
thermal environments in vehicles —
Part 2:
Voting terminates on:
Determination of equivalent
temperature
Ergonomie des ambiances thermiques — Évaluation des
ambiances thermiques dans les véhicules —
Partie 2: Détermination de la température équivalente
ICS: 13.180; 43.020
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland Reference number
ISO/DIS 14505-2:2025(en)
ii
ISO/DIS 14505-2:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Assessment principles . 2
4.1 General description of equivalent temperature .2
4.2 General determination principle of equivalent temperature .3
5 Specific equivalent temperatures . 4
5.1 General .4
5.2 Whole body equivalent temperature . .4
5.2.1 Determination principle .4
5.2.2 Calculation .4
5.3 Segmental equivalent temperature .5
5.3.1 Determination principle .5
5.3.2 Calculation .5
5.4 Directional equivalent temperature .5
5.4.1 Determination principle .5
5.4.2 Calculation .5
5.5 Omnidirectional equivalent temperature .6
5.5.1 Determination principle .6
5.6 Calculation .6
6 Measuring instruments . 7
7 Assessment . . 7
7.1 Determination of whole body equivalent temperature .7
7.1.1 Determination with omnidirectional sensors .8
7.1.2 Determination with a thermal manikin .8
7.2 Determination of local equivalent temperature .8
7.2.1 Determination with omnidirectional sensors or flat, heated sensors .8
7.2.2 Determination with a thermal manikin .8
8 Equivalent contact temperature t . 8
eq,cont
Annex A (informative) Examples of measuring instruments .12
Annex B (informative) Characteristics and specifications of measuring instruments .15
Annex C (informative) Calibration and other determinations .21
Annex D (informative) Interpretation of equivalent temperature .23
Annex E (informative) Examples .27
Bibliography .30
iii
ISO/DIS 14505-2:2025(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
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of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
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This document was prepared by Technical Committee ISO/TC 159, ergonomics, Subcommittee SC 5,
ergonomics of the physical environment.
This second edition cancels and replaces the first edition (ISO 14505-2:2006), which has been technically
revised.
The main changes are as follows:
— evaluation method for the contact areas (equivalent contact temperature)
A list of all parts in the ISO 14505 series can be found on the ISO website.
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.
iv
ISO/DIS 14505-2:2025(en)
Introduction
The interaction of convective, radiative and conductive heat exchange in a vehicle compartment is very
complex. External thermal loads in combination with the internal heating and ventilation system of the
vehicle cre
...
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