GB/T 25320.11-2023 Chinese PDF (GB/T25320.11-2023) GB/T 2879-2024 English versions: GB/T 27995

English versions: GB/T 27995

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 37400

1-2023_Chinese: Clamps and flow regulators for medical infusion and transfusion equipment - Part 1: Clamps and flow regulators without fluid contact (Chinese: 医用输液（输血）器具用止流夹和流量调节器 第1部分：非液体接触式止流夹和流量调节器)

and line pipe threads (Chinese: 石油天然气工业 套管、油管和管线管螺纹的加工、测量和检验)

GB/T 25320.11-2023 Chinese PDF (GB/T25320.11-2023) GB/T 2879-2024 English versions: GB/T 27995GB T 25320. 11 2023_Chinese: Power systems management and associated information exchange Data and communications security Part 11: Security for XML documents (Chinese: 11XML) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25320. 11 2023