Home / Standards / GB/T 222-1984 GB/T 222-1984 Abolished Method of sampling steel for determination of chemical composition and permissible variations for product analysis 钢的化学分析用试样取样法及成品化学成分允许偏差 Standard Type GBT ICS 77.080.20 CCS H11 Status 废止 Issue Date 1984-08-20 Implementation 1985-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A