标志用公共信息图形符号 动物符号
Public information graphical symbols for use on sign - Animal symbols
2013-07-19
GB/T 16903-2021
标志用图形符号表示规则 公共信息图形符号的设计原则与要求
Rules for the presentation of graphical symbols for use on signs—Design principles and requirements for public information graphical symbols
2021-03-09
GB/T 16903.2-2023
标志用图形符号表示规则 第2部分：公共信息图形符号的通用符号要素
Rules for the presentation of graphical symbols for use on signs—Part 2: General symbol elements for public information graphical symbols