IEC TR 60878:2022提供了医用电气设备的图形符号（图形、标题、描述）和安全标志的汇编，以便于参考。图形符号根据其特定的应用领域分为几个部分（见第4条）。 IEC TR 60878:2022取消并取代了2015年发布的第三版。这第四版构成了技术修订。 与IEC TR 60878:2015相比主要变化如下: ？共增加了自第三版出版以来已确定的109个新符号和安全标志。为了识别，新符号或安全标志的编号以红色印刷，后跟“新”。 ？在第三版中的符号和安全标志中，有14个在标题或描述上发生了变化。为了识别，修改后的符号或安全标志的编号以红色印刷，后跟“Mod”。

IEC TR 60878:2022 provides a compilation, for easy reference, of graphical symbols (graphics, title, description) and safety signs for medical electrical equipment. The graphical symbols are grouped in sections according to their specific field of application (see Clause 4).
IEC TR 60878:2022 cancels and replaces the third edition published in 2015. This fourth edition constitutes a technical revision.
The main changes compared with IEC TR 60878:2015 are as follows:
？ A total of 109 new symbols and safety signs that have been identified since the publication of the third edition have been added. For identification, the number of the new symbol or safety sign is printed in red followed by “New”.
？ Of the symbols and safety signs in the third edition, 14 have changes in their title or description. For identification, the number of a modified symbol or safety sign is printed in red followed by “Mod”.