IEC 63203-406-1:2021

IEC 63203-406-1 ®
Edition 1.0 2021-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Wearable electronic devices and technologies –
Part 406-1: Test method for measuring surface temperature of wrist-worn
wearable electronic devices while in contact with human skin

Technologies et dispositifs électroniques prêts-à-porter –
Partie 406-1: Méthode d’essai pour le mesurage de la température de surface
des dispositifs électroniques prêts-à-porter placés au poignet au contact de la
peau humaine
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IEC 63203-406-1 ®
Edition 1.0 2021-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Wearable electronic devices and technologies –

Part 406-1: Test method for measuring surface temperature of wrist-worn

wearable electronic devices while in contact with human skin

Technologies et dispositifs électroniques prêts-à-porter –

Partie 406-1: Méthode d’essai pour le mesurage de la température de surface

des dispositifs électroniques prêts-à-porter placés au poignet au contact de la

peau humaine
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.020 ISBN 978-2-8322-1061-5

– 2 – IEC 63203-406-1:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test conditions and test setup . 7
4.1 Environmental conditions . 7
4.2 Human skin-imitating fixture . 7
4.2.1 General . 7
4.2.2 Structure of the human skin-imitating fixture . 7
4.2.3 Monitoring skin-imitating temperature and heater control . 7
4.3 Stabilization time . 7
4.4 Test setup . 8
4.4.1 General . 8
4.4.2 Placement of device under test (DUT) . 8
4.4.3 Thermocouple placement . 9
4.4.4 Device operating conditions . 9
5 Test method . 9
6 Test report . 10
Annex A (informative) Low-temperature burn caused by wearable electronic devices. 11
A.1 General . 11
A.2 Low-temperature burn threshold . 11
Annex B (informative) Human skin-imitating fixture . 12
B.1 General structure . 12
B.2 Heater for imitating skin temperature . 12
Annex C (informative) Device operation scenario for the temperature test . 14
C.1 Normal operating condition scenario . 14
C.2 Abnormal operating condition scenario . 14
Bibliography . 15

Figure 1 – Test setup for evaluating the contact-surface temperature of a wearable
electronic device . 8
Figure B.1 – Structure of human skin-imitating fixture . 12
Figure B.2 – Minimum size of cover, heater, and the position of thermocouple to
monitor skin-imitating temperature . 13
Figure C.1 – Working period and duty cycle under device operating conditions . 14

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WEARABLE ELECTRONIC DEVICES AND TECHNOLOGIES –

Part 406-1: Test method for measuring surface temperature of wrist-worn
wearable electronic devices while in contact with human skin

FOREWORD
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IEC 63203-406-1 has been prepared by technical committee 124: Wearable electronic devices
and technologies. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
124/161/FDIS 124/168/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

– 4 – IEC 63203-406-1:2021 © IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
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at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater det
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