GB/T 45312-2025 Chinese PDF (GB /T45312-2025) GB/T 23025-2024 GB/T 45159

GB/T 45159

24-2025_Chinese: Methods for chemical analysis of magnesium and magnesium alloys - Part 24: Determination of trace impurity elements contents - Glow discharge mass spectrometry (Chinese: 镁及镁合金化学分析方法 第24部分：痕量杂质元素的测定 辉光放电质谱法)

English versions: GB/T 22252-2024

GB/T 45474-2025_Chinese: Test method for mode II interlaminar fracture toughness of carbon fiber reinforced composite materials - Three point bending method with end notched (Chinese: 碳纤维增强复合材料Ⅱ型层间断裂韧性的测定 端部切口三点弯曲法)

English versions: GB/T 26849-2025

GB/T 45312-2025 Chinese PDF (GB /T45312-2025) GB/T 23025-2024 GB/T 45159GB T 45312 2025_Chinese: Intelligent and connected vehicles Operational design condition for automated driving system (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45312 2025