Home / Standards / GB/T 24523-2009 GB/T 24523-2009 Abolished Test method for rapid indentation (Brinell) hardness testing of metallic materials 金属材料快速压痕(布氏)硬度试验方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 废止 Issue Date 2009-10-30 Implementation 2010-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A