GB/T 38651.4-2020
ActivePublic information signs carrier—Part 4：Maintenance requirements
公共信息标志载体 第4部分：维护要求
Application Summary AI generated
This standard specifies the maintenance requirements for carriers of public information signs, including inspection frequency, cleaning methods, repair procedures, and replacement criteria. It is applied in public facilities such as transportation hubs, hospitals, parks, and commercial buildings to ensure signs remain legible, intact, and functional over time. The standard supports consistent upkeep practices for sign carriers like boards, brackets, and electronic displays in China.
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