IEC 63203的本部分定义了用于规定标准测量条件和方法的术语、定义、符号、配置和测试方法，用于确定拟直接佩戴在人手腕上且在使用过程中可连续佩戴的手腕穿戴式可穿戴电子设备的接触面温度。试验条件不考虑灌注，因此保守考虑结果。温度升高是由可穿戴电子设备在工作期间的热能引起的。本文件给出了适用于普通人（在本文件中为健康成年人）使用的各种手腕佩戴的可穿戴电子设备的测试方法的一般程序。

This part of IEC 63203 defines the terms, definitions, symbols, configurations, and test methods to be used to specify the standard measurement conditions and methods for determining the contact-surface temperature of wrist-worn wearable electronic devices intended to be worn directly on a human wrist and that can be worn continuously during use. The conditions of the test do not consider perfusion and results are therefore considered conservatively. The temperature increase is induced by the thermal energy of wearable electronic devices during operation. This document gives the general procedure for the test method applicable to various wrist-worn wearable electronic devices for use by ordinary persons which in the context of this document is a healthy human adult.