Home / Standards / GB/T 11848.9-2025 GB/T 11848.9-2025 Active Methods for analysis of uranium ore concentrate—Part 9:Determination of silicon—Spectrophotometric method 铀矿石浓缩物分析方法 第9部分:硅的测定 分光光度法 Standard Type GBT ICS 27.120.30 CCS F 46 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit N/A