Home / Standards / GB/T 41439-2022 GB/T 41439-2022 Active Paper, board and pulps—Determination of pH of salted water extracts 纸、纸板和纸浆 盐水提取物pH的测定 Standard Type GBT ICS 85.040;85.060 CCS Y30 Status 现行 Issue Date 2022-04-15 Implementation 2022-11-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A