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English versions: GB/T 17365-2025
1-2025_Chinese: Test methods of rare earth phosphors for LED - Part 1: Determination of spectrum (Chinese: LED用稀土荧光粉试验方法 第1部分：光谱的测定)
English versions: GB/T 13000-2025
English versions: GB/T 33523
nickel and cobalt contents - Flame atomic absorption spectroscopy (Chinese: 锡化学分析方法 第1部分：铜、铅、锌、镉、银、镍和钴含量的测定 火焰原子吸收光谱法)
GB/T 33840-2025 Chinese PDF (GB /T33840-2025) GB/T 28885-2025 English versions: GB/T 17365-2025GB T 33840 2025_Chinese: General technical requirements for water jacket furnaces (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 33840 2025
