GB/T 39560.9-2024 Chinese PDF (GB/T39560.9-2024) GB/T 19480-2025 English versions: GB/T 20429-2024

English versions: GB/T 20429-2024

3-2025_Chinese: Household electric direct-acting room heaters - Methods for measuring performance - Part 3: Additional provisions for the measurement of the radiation efficiency (Chinese: 家用直接作用式房间电加热器 性能测试方法 第3部分：辐射效率测量的附加规定)

GB/T 45514-2025_Chinese: Textiles - Quantitative chemical analysis - Mixtures of polyarylate with certain other fibers (Chinese: 纺织品　定量化学分析 聚芳酯纤维与某些其他纤维的混合物)

GB/T 12940-2023_Chinese: Technical specification for silver-graphite electrical contacts (Chinese: 银石墨电触头技术条件)

English versions: GB/T 31900-2024

GB/T 39560.9-2024 Chinese PDF (GB/T39560.9-2024) GB/T 19480-2025 English versions: GB/T 20429-2024GB T 39560. 9 2024_Chinese: Determination of certain substances in electrical and electronic products Part 9: Hexabromocyclododecane in polymers by gas chromatography mass spectrometry (GC MS) (Chinese: 9 GC MS) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 39560. 9 2024