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English versions: GB/T 22246-2025
4-2024_Chinese: Optics and photonics - Microlens arrays - Part 4: Test methods for geometrical properties (Chinese: 光学和光子学 微透镜阵列 第4部分：几何特性测试方法)
English versions: GB 2099
English versions: GB/T 21478-2024
352-2022_Chinese: Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs) (Chinese: 低压电涌保护器元件 第352部分：电信和信号网络的电涌隔离变压器(SIT)的选择和使用导则)
GB/T 15843.4-2024 English PDF (GB/T15843.4-2024) GB/T 11091-2024 English versions: GB/T 22246-2025GB T 15843. 4 2024_Chinese: Information technology Security techniques Entity authentication Part 4: Mechanisms using a cryptographic check function (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15843. 4 2024
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