Home / Standards / GB/T 39492-2020 GB/T 39492-2020 Active Testing method of quantum efficiency for white LED phosphor 白光LED用荧光粉量子效率测试方法 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