Home / Standards / GB/T 40920-2021 GB/T 40920-2021 Active Leather—Tests for colour fastness—Colour fastness to cycles of to-and-fro rubbing 皮革 色牢度试验 往复式摩擦色牢度 Standard Type GBT ICS 59.140.30 CCS Y46 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A