Home / Standards / GB/T 33779.3-2021 GB/T 33779.3-2021 Active Guidance for special characteristic of optical fibre—Part 3: Effective area (Aeff) 光纤特性测试导则 第3部分:有效面积(Aeff) Standard Type GBT ICS 33.180.10 CCS M33 Status 现行 Issue Date 2021-04-30 Implementation 2021-08-01 Responsible Dept 工业和信息化部(通信) Drafting Unit N/A