Home / Standards / GB/T 20124-2006 GB/T 20124-2006 Active Steel and iron -- Determination of nitrogen content -- Thermal conductimetric method after fusion in a current of inert gas (Routine method) 钢铁 氮含量的测定 惰性气体熔融热导法（常规方法） Standard Type GBT ICS 77.080.01 CCS H11 Status 现行 Issue Date 2006-03-02 Implementation 2006-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A