GB/T 19510.1-2023 Chinese PDF (GB/T19510.1-2023) GB/T 20405.5-2025 31-2025_Chinese: National food safety standard

31-2025_Chinese: National food safety standard - Food contact materials and products - Determination of residual and migration of vinyl chloride

English versions: GB/T 18156-2023

English versions: GB/T 28572-2025

5-2025_Chinese: Recovery of traction battery used in electric vehicle - Echelon use - Part 5: Battery design guide for echelon use (Chinese: 车用动力电池回收利用 梯次利用 第5部分：可梯次利用设计指南)

power supply units and combinations thereof - Part 2: Particular requirements and tests for separating transformers and power supply units incorporating separating transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第2部分：一般用途分离变压器和内装分离变压器的电源装置的特殊要求和试验)

GB/T 19510.1-2023 Chinese PDF (GB/T19510.1-2023) GB/T 20405.5-2025 31-2025_Chinese: National food safety standardGB T 19510. 1 2023_Chinese: [Including 2025XG1] Controlgear for electric light sources Part 1: General and safety requirements (Chinese: 1 :) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19510. 1 2023