GB/T 20854-2025 Chinese PDF (GB /T20854-2025) GB/T 15969.2-2024 GB 45438-2025_Chinese: Cybersecurity technology -

GB 45438-2025_Chinese: Cybersecurity technology - Labeling method for content generated by artificial intelligence (Chinese: 网络安全技术 人工智能生成合成内容标识方法)

1-2025_Chinese: Determination of the ultimate aerobic biodegradability of plastic materials under conctrolled composting conditions - Method by analysis of evolved cabon dioxide - Part 1: General method (Chinese: 受控堆肥条件下材料最终需氧生物分解能力的测定 采用测定释放的二氧化碳的方法 第1部分：通用方法)

English versions: GB/T 20604-2025

GB/T 23528

GB 30185-2025_Chinese: Norm of energy consumption per unit production of aluminum (plastic) composite panel (Chinese: 铝（塑）复合板单位产品能源消耗限额)

GB/T 20854-2025 Chinese PDF (GB /T20854-2025) GB/T 15969.2-2024 GB 45438-2025_Chinese: Cybersecurity technology -GB T 20854 2025_Chinese: Corrosion of metals and alloys Accelerated testing involving cyclic exposure to salt mist, dry and wet conditions (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20854 2025