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'2020'
China GB Standards List

 GB/T 39621-2020  
Textiles—Quantitative chemical analysis—Mixture of cross-linked lyocell fibres and viscose or cupro or modal (method using formic acid and zinc chloride)

纺织品 定量化学分析 交联型莱赛尔纤维与粘胶纤维、铜氨纤维、莫代尔纤维的混合物(甲酸/氯化锌法)
 GB/T 39670-2020  
Determination of nitrofuran metabolites in pet feeds—Liquid chromatography–tandem mass spectrometry

宠物饲料中硝基呋喃类代谢物残留量的测定 液相色谱-串联质谱法

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