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English versions: GB/T 11856
4-2025_Chinese: Test methods of rare earth phosphors for LED - Part 4: Determination of high temperature and high humidity property (Chinese: LED用稀土荧光粉试验方法 第4部分：高温高湿性能的测定)
GB/T 20424-2025_Chinese: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products (Chinese: 重有色金属精矿产品中有害元素的限量规范)
English versions: GB/T 15683-2025
requirements and guidelines (Chinese: 环境管理 产品系统生态效率评估 原则、要求与指南)
GB/T 23595.3-2025 Chinese PDF (GB /T23595.3-2025) GB/T 20854-2025 English versions: GB/T 11856GB T 23595. 3 2025_Chinese: Test methods of rare earth phosphors for LED Part 3: Determination of chromaticity coordinates (Chinese: LED 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23595. 3 2025
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