GB/T 5686.5-2023 Chinese PDF (GB/T5686.5-2023) GB 30000.1-2024 English versions: GBZ45492-2025

English versions: GBZ45492-2025

GB/T 45119-2024_Chinese: Technical requirement for insulation monitoring of low voltage power system in power plants and substations (Chinese: 电力厂站低压用电系统的绝缘监测技术要求)

English versions: GB/T 44878-2024

GB/T 45357-2025_Chinese: Plastics piping systems on ships - Polyethylene (PE) pipes and fittings (Chinese: 船用塑料管道系统 聚乙烯（PE）管材及管件)

2-2024_Chinese: Leather and fur - Determination of the preservative content - Part 2: Liquid chromatography method(artificial perspiration extraction) (Chinese: 皮革和毛皮 防霉剂的测定 第2部分：液相色谱法（人工汗液萃取）)

GB/T 5686.5-2023 Chinese PDF (GB/T5686.5-2023) GB 30000.1-2024 English versions: GBZ45492-2025GB T 5686. 5 2023_Chinese: Ferromanganese, ferromanganese silicon, nitrogen bearing ferromanganese and manganese metal Determination of carbon content The Infrared absorption method, the gasometric method, the gravimetric method and the coulometric method (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5686. 5 2023