GB/T 29820.2-2024 Chinese PDF (GB /T29820.2-2024) GB/T 27697-2024 English versions: GB 45185-2024

English versions: GB 45185-2024

English versions: GB/T 1094

English versions: GB 4824-2025

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)

1-2025_Chinese: Test methods of rare earth phosphors for LED - Part 1: Determination of spectrum (Chinese: LED用稀土荧光粉试验方法 第1部分：光谱的测定)

GB/T 29820.2-2024 Chinese PDF (GB /T29820.2-2024) GB/T 27697-2024 English versions: GB 45185-2024GB T 29820. 2 2024_Chinese: Assessment of uncertainty in the calibration and use of flow measurement devices Part 2: Non linear calibration relationships (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 29820. 2 2024