Home / Standards / GB/T 40031-2021 GB/T 40031-2021 Active Determination of polychlorinated naphthalenes in electrical and electronic products—Gas chromatorgaphy-mass spectrometry method 电子电气产品中多氯化萘的测定 气相色谱-质谱法 Standard Type GBT ICS 31.020 CCS L10 Status 现行 Issue Date 2021-04-30 Implementation 2021-11-01 Responsible Dept 国家标准委 Drafting Unit N/A