Home / Standards / GB/T 3286.2-2025 GB/T 3286.2-2025 Active Methods for chemical analysis of limestone and dolomite—Part 2: Determination of silicon and aluminium content 石灰石及白云石化学分析方法 第2部分:硅、铝含量的测定 Standard Type GBT ICS 73.080 CCS D52 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A