GB/T 7000.220-2023 Chinese PDF (GB/T7000.220-2023) GB/T 43291-2023 GBZ45492-2025_Chinese: Course development guide for

GBZ45492-2025_Chinese: Course development guide for education about standardization - National quality infrastructure and its application (Chinese: 标准化教育课程建设指南 国家质量基础设施（NQI）及应用)

GB/T 35136-2024_Chinese: General technical requirements for control equipment of smart home (Chinese: 智能家居自动控制设备通用技术要求)

2-2023_Chinese: Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 2: Method by measuring the oxygen demand in closed respirometer (Chinese: 塑料 暴露于海水中塑料材料需氧生物分解的测定 第2部分：采用测定密闭呼吸计内需氧量的方法)

English versions: GB/T 20042

GB/T 25982-2024_Chinese: Limits and measurement methods for bus interior noise (Chinese: 客车车内噪声限值及测量方法)

GB/T 7000.220-2023 Chinese PDF (GB/T7000.220-2023) GB/T 43291-2023 GBZ45492-2025_Chinese: Course development guide forGB T 7000. 220 2023_Chinese: Luminaires Part 2 20: Particular requirements Lighting chains (Chinese: 2 20 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 7000. 220 2023