Home / Standards / GB/T 20147.6-2026 GB/T 20147.6-2026 Active Colorimetry—Part 6: CIEDE2000 colour-difference formula 色度学 第6部分：CIEDE2000色差公式 Standard Type GBT ICS 17.180.20 CCS K 70 Status 现行 Issue Date 2026-04-30 Implementation 2026-04-30 Responsible Dept 中国轻工业联合会 Drafting Unit N/A