Home / Standards / GB/T 24583.7-2009 GB/T 24583.7-2009 Abolished Vanadium-Nitrogen alloy - Determination of oxygen content - The infrared absorption method 钒氮合金 氧含量的测定 红外线吸收法 Standard Type GBT ICS 77.100 CCS H11 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