According to the Ganzhou Municipal Market Regulation Administration, two national standards led by the Jiangxi Provincial Tungsten and Rare Earth Product Quality Supervision and Inspection Center - "Methods for Chemical Analysis of Tungsten Concentrates — Part 19: Determination of Fluoride Content — Ion Selective Electrode Method" (GB/T 6150.19-2025) and "Methods for Chemical Analysis of Tungsten Concentrates — Part 20: Determination of Mercury Content — Solid Sampling and Direct Mercury Analysis Method" (GB/T 6150.20-2025) - were officially released on January 24, 2025. The establishment of these standards marks a significant milestone in the standardization progress of China's tungsten concentrate chemical analysis field, demonstrating the nation's technical capabilities and regulatory leadership in this domain.
As a crucial strategic resource, tungsten concentrate serves as the core raw material for producing tungsten and its alloys. The resultant tungsten products and alloys, characterized by their high melting point, high specific gravity, and exceptional hardness, find extensive applications across machinery manufacturing, metallurgy, mining, electronics, telecommunications, construction, defense industries, and aerospace sectors, playing a pivotal role in national industrial development and defense security. However, throughout the entire process of tungsten concentrate mining, smelting, processing, and utilization, harmful elements such as fluorine and mercury may migrate, concentrate, and accumulate in waste residues and wastewater, causing severe environmental pollution and posing health risks.
Addressing these challenges, the Jiangxi Provincial Tungsten and Rare Earth Product Quality Supervision and Inspection Center has successfully developed standardized, user-friendly, and highly accurate testing protocols through rigorous experimental research. These newly established methods provide scientific and reliable solutions for precisely determining fluorine and mercury content in tungsten concentrate.
The release of these standards not only unifies analytical methods for fluorine and mercury detection in tungsten concentrate, significantly enhancing the accuracy and comparability of test results, but also strongly promotes research on environmental pollution control during tungsten concentrate production and processing. This achievement provides substantial support for implementing national ecological and environmental protection strategies.
