GB/T 16844-2023 Chinese PDF (GB/T16844-2023) GB/T 45329-2025 English versions: GB 20052-2024

English versions: GB 20052-2024

GB/T 45644-2025_Chinese: Test method for resistance against surface and traffic loading of the thermoplastics inspection chamber (Chinese: 热塑性塑料检查井抗地面和交通负荷性能试验方法)

GB/T 22252-2024_Chinese: Determination of coenzyme Q10 in health foods (Chinese: 保健食品中辅酶Q10的测定)

2-2024_Chinese: Lighting of work places - Part 2: Lighting requirements for safety and security of outdoor work places (Chinese: 工作场所照明 第2部分：室外作业场所的安全保障照明要求)

GB/T 45316-2025_Chinese: Determination of piperine content - Spectrophotometric method (Chinese: 胡椒碱含量的测定 分光光度法)

GB/T 16844-2023 Chinese PDF (GB/T16844-2023) GB/T 45329-2025 English versions: GB 20052-2024GB T 16844 2023_Chinese: Self ballasted fluorescent lamps for general lighting service Safety specifications (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 16844 2023