Home / Standards / GB/T 18114.11-2025 GB/T 18114.11-2025 Active Chemical analysis methods for rare earth concentrates—Part 11: Determination of fluorine content 稀土精矿化学分析方法 第11部分:氟含量的测定 Standard Type GBT ICS 77.120.99 CCS H14 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 国家标准委 Drafting Unit N/A