Home / Standards / GB/T 223.8-2025 GB/T 223.8-2025 Active Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method 钢铁及合金 铝含量的测定 滴定法和分光光度法 Standard Type GBT ICS 77.080.01 CCS H11 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