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English versions: GB/T 4214
GB/T 45020-2024_Chinese: Methods for chemical analysis of niobium hafnium alloys - Determination of trace impurity elements content - Inductively coupled plasma mass spectrometry (Chinese: 铌铪合金化学分析方法 痕量杂质元素的测定 电感耦合等离子体质谱法)
English versions: GB/T 45383-2025
GB/T 43708-2025_Chinese: General rules for scientific data security requirements (Chinese: 科学数据安全要求通则)
English versions: GB/T 45178-2024
GB/T 45250-2025 Chinese PDF (GB /T45250-2025) GB/T 23694-2024 English versions: GB/T 4214GB T 45250 2025_Chinese: Telecom and internet services Standardization guideline (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45250 2025
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