Home / Standards / GB/T 223.92-2023 GB/T 223.92-2023 Active Iron, steel and alloy—Determination of lanthanum, cerium, praseodymium, neodymium and samarium content—Inductively coupled plasma mass spectrometry 钢铁及合金 镧、铈、镨、钕、钐含量的测定 电感耦合等离子体质谱法 Standard Type GBT ICS 77.080.01 CCS H11 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A