GB/T 20725-2025 Chinese PDF (GB /T20725-2025) GB 5009.307-2025 English versions: GB/T 16605-2024

English versions: GB/T 16605-2024

English versions: GB 12268-2025

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)

English versions: GB 29743

4-2025_Chinese: Instruments for stage measurement - Part 4: Ultrasonic stage recorder (Chinese: 水位测量仪器 第4部分：超声波水位计)

GB/T 20725-2025 Chinese PDF (GB /T20725-2025) GB 5009.307-2025 English versions: GB/T 16605-2024GB T 20725 2025_Chinese: Microbeam analysis Electron probe microanalysis Guidelines for qualitative point analysis by wavelength dispersive X ray spectrometry (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20725 2025