GB/T 223.16-1991 Methods for chemical analysis of iron,steel and alloy--The chromotropic acid photometric method for the determination of titanium content (English Version)
This standard specifies the determination of titanium content by chromotropic acid photometry. This standard is applicable to the determination of pig iron, carbon steel and iron-based steel grades. Measuring range: 0.010% to 2.50%.
GB/T 223.16-1991 history
1991GB/T 223.16-1991 Methods for chemical analysis of iron,steel and alloy--The chromotropic acid photometric method for the determination of titanium content