GB/T 44942-2024 Chinese PDF (GB /T44942-2024) GB/T 16702.1-2025 GB/T 21638-2025_Chinese: Microbeam analysis -

GB/T 21638-2025_Chinese: Microbeam analysis - Guidelines for electron beam microanalysis of defects in steel materials (Chinese: 微束分析 钢铁材料缺陷电子束显微分析方法通则)

English versions: GB/T 22211-2025

GB/T 45013-2024_Chinese: Test method for thermal fatigue of fine ceramics substrate (Chinese: 精细陶瓷基片的热疲劳试验方法)

12-2025_Chinese: Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing

2-2025_Chinese: Test methods of rare earth phosphors for LED - Part 2: Determination of relative brightness (Chinese: LED用稀土荧光粉试验方法 第2部分：相对亮度的测定)

GB/T 44942-2024 Chinese PDF (GB /T44942-2024) GB/T 16702.1-2025 GB/T 21638-2025_Chinese: Microbeam analysis -GB T 44942 2024_Chinese: Footwear Test method for insoles and insocks Dimensional change after cycle of wetting and drying (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 44942 2024