GB/T 40344.3-2024 Chinese PDF (GB/T40344.3-2024) GB/T 21551.5-2024 GB/T 42257-2022_Chinese: Method for measuring

GB/T 42257-2022_Chinese: Method for measuring optical and laser performance for Chromium and Erbium co-doped Yttrium Scandium Gallium Garnet laser crystal (Chinese: 铬铒共掺钇钪镓石榴石晶体光学及激光性能测量方法)

English versions: GB 44917-2024

English versions: GB/T 11828

GB/T 45179-2024_Chinese: Man-made fibre - Determination of friction factors of staple fibres - Capstan method (Chinese: 化学纤维 短纤维摩擦因数的测定 绞盘法)

GB/T 33665-2023_Chinese: Technical requirements and detecting method of audio and video for digital publication (Chinese: 数字出版物声频视频技术要求及检测方法)

GB/T 40344.3-2024 Chinese PDF (GB/T40344.3-2024) GB/T 21551.5-2024 GB/T 42257-2022_Chinese: Method for measuringGB T 40344. 3 2024_Chinese: Vacuum technology Standard methods for measuring vacuum pump performance Part 3: Specific parameters for mechanical booster vacuum pumps (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 40344. 3 2024