Home / Standards / GB/T 19894-2025 GB/T 19894-2025 Active Digital still-picture cameras—Methods for measuring opto-electronic conversion functions(OECFs) 数码照相机 光电转换函数(OECFs)的测量方法 Standard Type GBT ICS 37.040.10 CCS N46 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A