GB/T 223.65-1988 Methods for chemical analysis of iron, steel and alloy--The flame atomic absorption spectrometric method for the determination of cobalt content (English Version)
This standard is applicable to the determination of cobalt content in cast iron, carbon steel and low alloy steel. Measuring range: 0.01% to 0.5%. This standard complies with GB 1467-78 "General Rules and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products". This standard complies with GB 7728-87 "General Rules for Chemical Analysis of Metallurgical Products by Flame Atomic Absorption Spectrometry".
GB/T 223.65-1988 history
2012GB/T 223.65-2012 Steel, iron and alloy.Determination of cobalt content.Flame atomic absorption spectrometric method
1988GB/T 223.65-1988 Methods for chemical analysis of iron, steel and alloy--The flame atomic absorption spectrometric method for the determination of cobalt content