GB/T 39998-2021.Paper, board and paper products- Determination of alkylphenol polyethoxylates- HPLC-...
GB国家标准
GB国家标准
GB国家标准
GB/T 39998-2021 纸、纸板和纸制品烷基苯酚聚氧乙烯醚类的测定高效液相色谱质谱法
GB/T 39998-2021.Paper, board and paper products-Determination of alkylphenol polyethoxylates-HPLC-MS...