GB/T 45275-2025 Chinese PDF (GB /T45275-2025) GB/T 2812-2024 English versions: GB/T 15237-2025

English versions: GB/T 15237-2025

English versions: GB/T 35560-2025

GB/T 45043-2024_Chinese: Textiles - Determination of adipate esters - Gas chromatography-mass spectrometry method (Chinese: 纺织品 己二酸酯的测定 气相色谱-质谱法)

GB/T 22453-2025_Chinese: Non-linear optical crystal devices measuring method for laser (Chinese: 激光用非线性光学晶体元件性能测量方法)

20-2024_Chinese: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides - Ion chromatography method (Chinese: 稀土金属及其氧化物中非稀土杂质化学分析方法 第20部分：稀土氧化物中微量氟、氯的测定 离子色谱法)

GB/T 45275-2025 Chinese PDF (GB /T45275-2025) GB/T 2812-2024 English versions: GB/T 15237-2025GB T 45275 2025_Chinese: Determination of N, N dimethylformamide in toys and children's products Gas chromatography mass spectrometry (Chinese: N,N ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45275 2025