GB/T 43282.2-2023 Chinese PDF (GB/T43282.2-2023) GB/T 13651-2023 GB 44022-2024_Chinese: Safety technical specification

GB 44022-2024_Chinese: Safety technical specification for ammonium nitrate (Chinese: 硝酸铵安全技术规范)

GB/T 33285

English versions: GB/T 45638-2025

GB/T 42257-2022_Chinese: Method for measuring optical and laser performance for Chromium and Erbium co-doped Yttrium Scandium Gallium Garnet laser crystal (Chinese: 铬铒共掺钇钪镓石榴石晶体光学及激光性能测量方法)

GB/T 43282.2-2023 Chinese PDF (GB/T43282.2-2023) GB/T 13651-2023 GB 44022-2024_Chinese: Safety technical specificationGB T 43282. 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: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 43282. 2 2023