GB/T 223.53-1987 Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content (English Version)
This standard is applicable to the determination of copper content in cast iron, carbon steel and low alloy steel. Measuring range: 0.005 to 0.50%. This standard complies with GB1467-78 "General Rules and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
GB/T 223.53-1987 history
1987GB/T 223.53-1987 Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content