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English versions: GB 25596-2025
3-2025_Chinese: Test methods of rare earth phosphors for LED - Part 3: Determination of chromaticity coordinates (Chinese: LED用稀土荧光粉试验方法 第3部分：色品坐标的测定)
1-2025_Chinese: Assembled spectacles - Part 1: Single-vision and multifocal prescription assembled spectacles (Chinese: 配装眼镜 第1部分：单焦和多焦定配眼镜)
GB/T 26718-2024_Chinese: Technical requirements for safety system of urban mass transit (Chinese: 城市轨道交通安全防范系统技术要求)
English versions: GB/T 22451-2024
GB/T 20972.3-2025 Chinese PDF (GB /T20972.3-2025) GB/T 12643-2025 English versions: GB 25596-2025GB T 20972. 3 2025_Chinese: Petroleum and natural gas industries Materials for use in H2S containing environments in oil and gas production Part 3: Cracking resistant CRAs(corrosion resistant alloys) and other alloys (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20972. 3 2025
