GB/T 45574-2025 Chinese PDF (GB /T45574-2025) GB/T 20965-2025 GB/T 20236-2025_Chinese: Accelerated outdoor weathering

GB/T 20236-2025_Chinese: Accelerated outdoor weathering test methods for nonmetallic materials using concentrated natural sunlight (Chinese: 非金属材料的聚光加速户外暴露试验方法)

GB/T 12789

GB/T 45245-2025_Chinese: Determination method of total organic carbon in wood-based panels and finishing products (Chinese: 人造板及其制品中总有机碳的测定方法)

English versions: GB/T 45364-2025

English versions: GB/T 24345-2025

GB/T 45574-2025 Chinese PDF (GB /T45574-2025) GB/T 20965-2025 GB/T 20236-2025_Chinese: Accelerated outdoor weatheringGB T 45574 2025_Chinese: Data security technology Security requirements for processing of sensitive personal information (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45574 2025