Home / Standards / GB/T 4937.9-2026 GB/T 4937.9-2026 Upcoming Semiconductor devices—Mechanical and climatic test methods—Part 9:Permanence of marking 半导体器件 机械和气候试验方法 第9部分:标志耐久性 Standard Type GBT ICS 31.080.01 CCS L40 Status 即将实施 Issue Date 2026-02-27 Implementation 2026-09-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A