GB/T 18216.11-2024 Chinese PDF (GB /T18216.11-2024) GB/T 22939.2-2025 GB/T 22453-2025_Chinese: Non-linear optical crystal

GB/T 22453-2025_Chinese: Non-linear optical crystal devices measuring method for laser (Chinese: 激光用非线性光学晶体元件性能测量方法)

5-2024_Chinese: Implants for surgery - Ultra-high-molecular-weight polyethylene - Part 5: Morphology assessment method (Chinese: 外科植入物 超高分子量聚乙烯 第5部分：形态评价方法)

GB/T 11730-2025_Chinese: Rural domestic water quantity (Chinese: 农村生活饮用水量)

power supply units and combinations thereof - Part 14: Particular requirements and tests for auto-transformers and power supply units incorporating auto-transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第14部分：一般用途自耦变压器和内装自耦变压器的电源装置的特殊要求和试验)

GB/T 18216.11-2024 Chinese PDF (GB /T18216.11-2024) GB/T 22939.2-2025 GB/T 22453-2025_Chinese: Non-linear optical crystalGB T 18216. 11 2024_Chinese: Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC Equipment for testing, measuring or monitoring of protective measures Part 11: Effectiveness of residual current monitors(RCM)in TT, TN and IT systems (Chinese: 1000V1500V 11TTTNITRCM) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18216. 11 2024