GB/T 19510.207-2023 Chinese PDF (GB/T19510.207-2023) GB/T 45584-2025 GB/T 45164-2024_Chinese: Classification and designation

GB/T 45164-2024_Chinese: Classification and designation of defects in investment castings (Chinese: 熔模铸件缺陷分类及命名)

GB/T 22246-2025_Chinese: Determination of pantothenic acid in health foods (Chinese: 保健食品中泛酸的测定)

English versions: GB/T 45288

GB/T 20279-2024_Chinese: Cybersecurity technology - Technical specification for network and terminal separation products (Chinese: 网络安全技术 网络和终端隔离产品技术规范)

English versions: GB/T 27621-2024

GB/T 19510.207-2023 Chinese PDF (GB/T19510.207-2023) GB/T 45584-2025 GB/T 45164-2024_Chinese: Classification and designationGB T 19510. 207 2023_Chinese: Controlgear for electric light sources Part 2 7: Particular requirements for electric source for safety services (ESSS) supplied electronic controlgear for emergency lighting (self contained) (Chinese: 2 7ESSS) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19510. 207 2023