GB/T 45272-2025 Chinese PDF (GB /T45272-2025) GB/T 44941-2024 English versions: GB/T 45082-2024

English versions: GB/T 45082-2024

English versions: GB/T 45331-2025

2-2024_Chinese: Acoustics - Calibration of hydrophones - Part 2: Procedures for low frequency pressure calibration (Chinese: 声学 水听器校准 第2部分：低频声压场校准方法)

English versions: GB/T 44925-2024

GB/T 44884-2024_Chinese: Technical requirements for secure user plane location service - Platform (Chinese: 基于用户面的定位业务技术要求 平台)

GB/T 45272-2025 Chinese PDF (GB /T45272-2025) GB/T 44941-2024 English versions: GB/T 45082-2024GB T 45272 2025_Chinese: Guidelines for age friendly design of household products (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45272 2025