规定了以计算机可感知形式包含在参考符号库中的图形符号的要求，以及在计算机辅助工具之间交换图形符号的要求。参考符号库可作为设计和编辑文件的基础，以及在计算机辅助工具之间交换文件和图形符号库的基础。根据IEC指南108，其具有水平标准的状态。

Specifies requirements for graphical symbols to be included in a reference symbol library in a computer sensible form, and requirements for their interchange among computer aided tools. The reference symbol library may be used as a basis for the design and editing of documents, and for the interchange of documents and graphical symbol libraries among computer-aided tools. It has the status of a horizontal standard in accordance with IEC Guide 108.