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GB/T 23723
3-2025_Chinese: Uncut finished spectacle lenses - Part 3: Transmittance test methods (Chinese: 眼镜镜片 第3部分：透射比试验方法)
1-2025_Chinese: Information technology - Chinese coded character set - 48 dot matrix font of Chinese ideogram - Part 1: Song ti (Chinese: 信息技术 中文编码字符集 汉字48点阵字型 第1部分：宋体)
GB/T 18375-2024_Chinese: Prosthetics - Structural testing of lower-limb prostheses - Requirements and test methods (Chinese: 假肢 下肢假肢的结构检验 要求和试验方法)
18-2025_Chinese: National food safety standard - Determination of fluorine in foods (Chinese: 食品安全国家标准 食品中氟的测定)
GB/T 12690.20-2024 Chinese PDF (GB /T12690.20-2024) GB/T 19212.2-2025 GB/T 23723GB T 12690. 20 2024_Chinese: Chemical analysis methods for non rare earth impurities of rare earth metals and their oxides Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides Ion chromatography method (Chinese: 20 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 12690. 20 2024
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