
Recently, two national standards, led by the Provincial Tungsten and Rare Earth Quality Inspection Center, were officially released on January 24, 2025: GB/T 6150.19-2025: Methods for Chemical Analysis of Tungsten Concentrates-Part 19: Determination of Fluorine Content-Ion-Selective Electrode Method and GB/T 6150.20-2025: Methods for Chemical Analysis of Tungsten Concentrates-Part 20: Determination of Mercury Content-Direct Solid Sampling Method. The release of these two new standards not only standardizes the analytical methods for detecting fluorine and mercury content in tungsten concentrates, improving the…