Home / Standards / GB/T 46763-2025 GB/T 46763-2025 Upcoming Evaluation method for grain boundary diffusion result of sintered rare earth iron boron permanent magnets 稀土铁硼烧结永磁体晶界扩散效果评价方法 Standard Type GBT ICS 77.120.99 CCS H14 Status 即将实施 Issue Date 2025-12-02 Implementation 2026-07-01 Responsible Dept 国家标准委 Drafting Unit N/A