GB/T 9253-2022 Chinese PDF (GB/T9253-2022) GB/T 18910.12-2024 9-2024_Chinese: Determination of certain substances

9-2024_Chinese: Determination of certain substances in electrical and electronic products - Part 9: Hexabromocyclododecane in polymers by gas chromatography-mass spectrometry (GC-MS) (Chinese: 电子电气产品中某些物质的测定 第9部分：气相色谱-质谱法（GC-MS）测定聚合物中的六溴环十二烷)

2-2024_Chinese: Code of practice for terrestrial wildlife and its habitat survey - Part 2: Zoning (Chinese: 陆生野生动物及其栖息地调查技术规程 第2部分：调查区划)

GB/T 43271-2023_Chinese: Wood identification - DNA barcoding method (Chinese: 木材鉴定 DNA条形码方法)

GB/T 45537-2025_Chinese: Requirements of use and test methods for snow-making machines in ski area (Chinese: 滑雪场造雪机使用要求及检验方法)

English versions: GB/T 21499-2024

GB/T 9253-2022 Chinese PDF (GB/T9253-2022) GB/T 18910.12-2024 9-2024_Chinese: Determination of certain substancesGB T 9253 2022_Chinese: Petroleum and natural gas industries Threading, gauging and thread inspection of casing, tubing, and line pipe threads (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 9253 2022