KS C IEC 81714-2-2011 产品技术文件用图形符号设计.第2部分:计算机可识别形式图形符号(包括参考实验室用图形符号)规范及其互换要求
Design of graphical symbols for use in the technical documentation of products－Part 2：Specification for graphical symbols in a computer sensible form, including graphical symbols for a reference library, and requirements for their interchange