GB/T 12789.2-2025 Chinese PDF (GB /T12789.2-2025) GB/T 14666-2025 33-2024_Chinese: Specifications for optical fibre

33-2024_Chinese: Specifications for optical fibre test methods - Part 33: Measurement methods and test procedures for mechanical characteristics - Stress corrosion susceptibility (Chinese: 光纤试验方法规范 第33部分：机械性能的测量方法和试验程序 应力腐蚀敏感性参数)

171-2024_Chinese: Ergonomics of human-system interaction - Part 171: Guidance on software accessible design (Chinese: 人-系统交互工效学 第171部分：软件无障碍设计指南)

4-2025_Chinese: Assembled spectacles - Part 4: Multifocal and power-variation near-vision spectacles (Chinese: 配装眼镜 第4部分：多焦和渐变焦老视成镜)

2-2024_Chinese: Sterilization of health care products - Biological indicators - Part 2: Biological indicators for ethylene oxide sterilization processes (Chinese: 医疗保健产品灭菌 生物指示物 第2部分：环氧乙烷灭菌用生物指示物)

GB/T 12789.2-2025 Chinese PDF (GB /T12789.2-2025) GB/T 14666-2025 33-2024_Chinese: Specifications for optical fibreGB T 12789. 2 2025_Chinese: Criteria for nuclear reactor instrumentation Part 2: Pressurized water reactors (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 12789. 2 2025