GB/T 19520.22-2023 Chinese PDF (GB/T19520.22-2023) GB/T 45217-2025

GB/T 19520.22-2023 Chinese PDF (GB/T19520.22-2023) GB/T 45217-2025GB T 19520. 22 2023_Chinese: Mechanical structures for electrical and electronic equipment Dimensions of mechanical structures of the 482. 6 mm (19 in) series Part 3 110: Residential racks and cabinets for smart houses (Chinese: 482. 6 mm(19 in) 3 110) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19520. 22 2023

5-2024_Chinese: Safety requirements for electrical equipment for measurement

GB/T 45599-2025_Chinese: Liquid silicone rubber - Self-lubricating type for connectors (Chinese: 液体硅橡胶 连接器用自润滑型)

English versions: GB/T 23453-2025

English versions: GB/T 18238

GB/T 15241

lithi (Chinese: 金化学分析方法 第12 部分： 银、铜、铁、铅、铋、锑、镁、镍、锰、钯、铬、铂、铑、钛、锌、砷、锡、硅、钴、钙、钾、锂、钠、碲、钒、锆、镉、钼、铼、铝含量的测定 电感耦合等离子体原子发射光谱法)

2-2024_Chinese: Acoustics - Calibration of hydrophones - Part 2: Procedures for low frequency pressure calibration (Chinese: 声学 水听器校准 第2部分：低频声压场校准方法)

English versions: GB/T 43982

2-2025_Chinese: Sterilization of health care products - Microbiological methods - Part 2: Tests of sterility performed in the definition

GB 17167-2025_Chinese: General rules for energy measuring instrument equipping and managing of energy user (Chinese: 用能单位能源计量器具配备和管理通则)

“dry” and “wet” conditions (Chinese: 金属和合金的腐蚀 循环暴露在盐雾、“干”和“湿”条件下的加速试验)

power supply units and combinations thereof - Part 5: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第5部分：一般用途隔离变压器和内装隔离变压器的电源装置的特殊要求和试验)