GB/T 19510.202-2023 Chinese PDF (GB/T19510.202-2023) GB 31604.61-2025 12-2023_Chinese: Test method of impermeable

12-2023_Chinese: Test method of impermeable graphite materials - Part 12: Thermal conductivity (Chinese: 不透性石墨材料试验方法 第12部分：导热系数)

English versions: GB/T 45070-2024

GB/T 15148-2024_Chinese: Technical specifications for power load management system (Chinese: 电力负荷管理系统技术规范)

6-2024_Chinese: Antimicrobial and cleaning function of household and similar electrical appliances - Part 6: Particular requirements for air conditioner (Chinese: 家用和类似用途电器的抗菌、除菌、净化功能 第6部分：空调器的特殊要求)

English versions: GB 28881-2023

GB/T 19510.202-2023 Chinese PDF (GB/T19510.202-2023) GB 31604.61-2025 12-2023_Chinese: Test method of impermeableGB T 19510. 202 2023_Chinese: Controlgear for electric light sources Part 2 2: Particular requirements for d. c. or a. c. supplied electronic step down convertors for filament lamps (Chinese: 2 2 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19510. 202 2023