GB/T 223.48-1985 Methods for chemical analysis of iron,steel and alloy--The semixylenol orange photometric method for the determination of bismuth content (English Version)
This standard is applicable to the determination of bismuth content in pig iron, common steel, alloy steel, superalloy and precision alloy. Measuring range: 0.0002 to 0.010%. This standard complies with GB1467-78 "General Rules and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
GB/T 223.48-1985 history
1985GB/T 223.48-1985 Methods for chemical analysis of iron,steel and alloy--The semixylenol orange photometric method for the determination of bismuth content