GB/T 5766-2023 Chinese PDF (GB/T5766-2023) GB/T 45102-2024 75-2025_Chinese: National food safety standard

75-2025_Chinese: National food safety standard - Nutrition fortifier - 6S-5-methyltetrahydrofolate

GB/T 44943-2024_Chinese: Footwear - Chemical tests - Determination of the content of ortho-phenylphenol - HPLC-MS/MS (Chinese: 鞋类 化学试验方法 邻苯基苯酚含量的测定 高效液相色谱-串联质谱法)

62-2025_Chinese: National food safety standard - Food contact materials and products - Determination of migration and release of N-nitrosamines (Chinese: 食品安全国家标准 食品接触材料及制品 N-亚硝胺类化合物迁移量和释放量的测定)

4-2024_Chinese: Information technology - Energy consumption monitoring system of energy user - Part 4: Collection of energy varieties (Chinese: 信息技术 用能单位能耗在线监测系统 第4部分：能源品种采集)

1-2024_Chinese: Arc welding equipment - Part 1: Welding power sources (Chinese: 弧焊设备 第1部分：焊接电源)

GB/T 5766-2023 Chinese PDF (GB/T5766-2023) GB/T 45102-2024 75-2025_Chinese: National food safety standardGB T 5766 2023_Chinese: Test method of Rockwell hardness for friction materials (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5766 2023