GB 5009.307-2025 Chinese PDF GB/T 13815.1-2025 GB/T 12385-2025_Chinese: Standard test methods

GB/T 12385-2025_Chinese: Standard test methods for sealability of gaskets for pipe flanges (Chinese: 管法兰用垫片密封性能试验方法)

English versions: GB 15269-2025

English versions: GB 45669

English versions: GB 26386-2025

GB/T 13284-2025_Chinese: Design criteria of safety systems in nuclear power plants (Chinese: 核电厂安全系统设计准则)

GB 5009.307-2025 Chinese PDF GB/T 13815.1-2025 GB/T 12385-2025_Chinese: Standard test methodsGB 5009. 307 2025_Chinese: National food safety standard Determination of formaldehyde in foods (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 5009. 307 2025