GB/T 17215.241-2025 Chinese PDF (GB /T17215.241-2025) GB/T 15969.2-2024 GB/T 17145-2024_Chinese: Guidelines for recycling

GB/T 17145-2024_Chinese: Guidelines for recycling of used mineral oil (Chinese: 废矿物油回收与再生利用导则)

GB/T 21121-2024_Chinese: Animal and vegetable fats and oils - Determination of oxidative stability(accelerated oxidation test) (Chinese: 动植物油脂 氧化稳定性的测定（加速氧化测试）)

English versions: GB/T 18822

4-四甲基-1

GB/T 20032-2024_Chinese: Managing risk in projects - Application guidelines (Chinese: 项目风险管理 应用指南)

GB/T 17215.241-2025 Chinese PDF (GB /T17215.241-2025) GB/T 15969.2-2024 GB/T 17145-2024_Chinese: Guidelines for recyclingGB T 17215. 241 2025_Chinese: Electricity metering equipment General requirements, tests and test conditions Part 41: Energy registration methods and requirements for multi energy and multi rate meters (Chinese: 41) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 17215. 241 2025