Home / Standards / GB/T 6730.45-2025 GB/T 6730.45-2025 Active Iron ores—Determination of arsenic content—Arseno-molybdenum blue spectrophotometric method after hydrogen arsenide separation 铁矿石 砷含量的测定 砷化氢分离—砷钼蓝分光光度法 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A