GB/T 2820.9-2024 Chinese PDF (GB/T2820.9-2024) GB/T 33588.5-2025 GB/T 45637-2025_Chinese: Electrically operated toothbrushes

GB/T 45637-2025_Chinese: Electrically operated toothbrushes - Methods for measuring the performance (Chinese: 电动牙刷 性能测试方法)

209-2023_Chinese: Controlgear for electric light sources - Part 2-9: Particular requirements for electromagnetic controlgear for discharge lamps(excluding fluorescent lamps) (Chinese: 光源控制装置 第2-9部分：放电灯（荧光灯除外）用电磁控制装置的特殊要求)

GB 44022-2024_Chinese: Safety technical specification for ammonium nitrate (Chinese: 硝酸铵安全技术规范)

GB/T 18109-2024_Chinese: Frozen finfish (Chinese: 冻鱼)

31-2025_Chinese: National food safety standard - Determination of p-hydroxybenzoic acid esters in foods (Chinese: 食品安全国家标准 食品中对羟基苯甲酸酯类化合物的测定)

GB/T 2820.9-2024 Chinese PDF (GB/T2820.9-2024) GB/T 33588.5-2025 GB/T 45637-2025_Chinese: Electrically operated toothbrushesGB T 2820. 9 2024_Chinese: Reciprocating internal combustion engine driven alternating current generating sets Part 9: Measurement and evaluation of mechanical vibrations (Chinese: 9) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2820. 9 2024