Home / Standards / GB/T 23981.2-2023 GB/T 23981.2-2023 Active Paints and varnishes—Determination of hiding power—Part 2:Method of black and white grid panel 色漆和清漆 遮盖力的测定 第2部分:黑白格板法 Standard Type GBT ICS 87.040 CCS G50 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A