Home / Standards / GB/T 21931.1-2008 GB/T 21931.1-2008 Abolished Nickel,ferronickel and nickel alloys - Determination of carbon content - Infrared absorption method after induction furnace combustion 镍、镍铁和镍合金 碳含量的测定 高频燃烧红外吸收法 Standard Type GBT ICS 77.100 CCS H11 Status 废止 Issue Date 2008-05-30 Implementation 2008-12-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会