GB/T 45227-2025 Chinese PDF (GB /T45227-2025) GB/T 23454-2025 English versions: GB/T 31790-2025

English versions: GB/T 31790-2025

English versions: GB 19302-2025

GB/T 44994-2024_Chinese: Acoustics - Hearing aid fitting management (HAFM) (Chinese: 声学 助听器验配管理)

1-2025_Chinese: Information technology - Extensible biometric data interchange formats - Part 1: Framework (Chinese: 信息技术 可扩展的生物特征识别数据交换格式 第1部分：框架)

GB/T 45285-2025_Chinese: Ergonomics of human-system interaction - Evaluation directives for the design of input system (Chinese: 人-系统交互工效学 输入系统设计评估导则)

GB/T 45227-2025 Chinese PDF (GB /T45227-2025) GB/T 23454-2025 English versions: GB/T 31790-2025GB T 45227 2025_Chinese: Technical requirements for closed off management system of chemical industry park (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45227 2025