GB/T 41439-2022纸、纸板和纸浆盐水提取物pH的测定标准
英文标题:Paper, board and pulps—Determination of pH of salted water extracts GB/T 41439-2022介绍: 国家标准《纸、纸板和纸浆 盐水提取物pH的测定》由TC1...
英文标题:Paper, board and pulps—Determination of pH of salted water extracts GB/T 41439-2022介绍: 国家标准《纸、纸板和纸浆 盐水提取物pH的测定》由TC1...