Home / Standards / GB/T 24981.2-2020 GB/T 24981.2-2020 Active Test methods of rare earth long afterglow phosphors—Part 2: Determination of afterglow brightness 稀土长余辉荧光粉试验方法 第2部分:余辉亮度的测定 Standard Type GBT ICS 77.120.99 CCS H14 Status 现行 Issue Date 2020-11-19 Implementation 2021-10-01 Responsible Dept 国家标准委 Drafting Unit N/A