IEC 60393-3:20 23适用于电子设备中使用的旋转精密电位器。本文件的目的是规定优选的额定值和特性，从IEC 60393-1中选择适当的质量评估程序、测试和测量方法，并给出此类电位计的一般性能要求。本文档给出了最低性能要求和测试严重性。 与上一版相比，此版本包括以下重大技术变更: a)根据ISO/IEC指令第2部分:2018（第八版）修订了文件的所有部分，并与其他类似类型的文件进行了协调； b)文件结构的组织遵循TC 40中确定的新的部分规范结构； c)修订评估级别EZ（零不合格）的信息。

IEC 60393-3:2023 applies to rotary precision potentiometers for use in electronic equipment. The object of this document is to prescribe preferred ratings and characteristics and to select from IEC 60393-1, the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of potentiometer. This document gives the minimum performance requirements and test severities.
This edition includes the following significant technical changes with respect to the previous edition:
a) revised all parts of the document based on the ISO/IEC Directives, Part 2:2018 (eighth edition) and harmonized with other similar kinds of documents;
b) the document structure has been organized to follow new sectional specification structure decided in TC 40;
c) revision of the information on the assessment level EZ (zero nonconforming).