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GB/T 20236-2025_Chinese: Accelerated outdoor weathering test methods for nonmetallic materials using concentrated natural sunlight (Chinese: 非金属材料的聚光加速户外暴露试验方法)
GB 45184-2024_Chinese: Optometry products - Safety technical specifications of components (Chinese: 眼视光产品 元件安全技术规范)
English versions: GB/T 14404-2024
1-2024_Chinese: Multimode optical fibres for telecommunication - Part 1: Sectional specification for category A1 multimode fibres (Chinese: 通信用多模光纤 第1部分：A1类多模光纤特性)
English versions: GB/T 1634
GB/T 19212.14-2025 Chinese PDF (GB /T19212.14-2025) GB/T 20236-2025 GB/T 20236-2025_Chinese: Accelerated outdoor weatheringGB T 19212. 14 2025_Chinese: Safety of transformers, reactors, power supply units and combinations thereof Part 14: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers for general applications (Chinese: 14) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19212. 14 2025
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