China National Standards

China precursors GB Standards List


  •  China "precursors" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 41413-2022 Determination of migration of N-nitrosamine and its precursors in toys high performance liquid chromatography tandem mass spectrometry {译}
    玩具中N-亚硝胺及其前体物迁移量的测定 高效液相色谱-串联质谱法
    China National Standards
    precursors

    English PDF
    GB/T 23442-2009 Determination of structure and morphology for the precursors of polyacrylonitrile-based carbon fibers
    聚丙烯腈基碳纤维原丝结构和形态的测定
    China National Standards
    precursors

    English PDF

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