GB/T 33588.3-2025 Chinese PDF (GB /T33588.3-2025) GB/T 29301-2024 English versions: GB/T 33767

English versions: GB/T 33767

20-2024_Chinese: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides - Ion chromatography method (Chinese: 稀土金属及其氧化物中非稀土杂质化学分析方法 第20部分：稀土氧化物中微量氟、氯的测定 离子色谱法)

2-2025_Chinese: Information technology - Abstract Syntax Notation One (ASN

GB/T 26718-2024_Chinese: Technical requirements for safety system of urban mass transit (Chinese: 城市轨道交通安全防范系统技术要求)

English versions: GB/T 16981-2025

GB/T 33588.3-2025 Chinese PDF (GB /T33588.3-2025) GB/T 29301-2024 English versions: GB/T 33767GB T 33588. 3 2025_Chinese: Lightning protection system components(LPSC) Part 3: Requirements for isolating spark gaps(ISGs) (Chinese: LPSC 3 ISGs) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 33588. 3 2025