Home / Standards / GB/T 38223-2019 GB/T 38223-2019 Active Determination of ferrite content in austenitic stainless steel castings 奥氏体不锈钢铸件中铁素体含量测定方法 Standard Type GBT ICS 77.040.99 CCS J31 Status 现行 Issue Date 2019-10-18 Implementation 2020-05-01 Responsible Dept 国家标准委 Drafting Unit N/A