Home / Standards / GB/T 10267.2-2025 GB/T 10267.2-2025 Active Methods for analysis of calcium metal—Part 2:Determination of micro-amounts of silicon by spectrophotometry 金属钙分析方法 第2部分:光度法测定微量硅 Standard Type GBT ICS 77.120 CCS H 12 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 国家标准委 Drafting Unit N/A