GB/T 223.45-1994 Methods for chemical analysis of iron,steel and alloy. The cupral Separation-xylidyl blue Ⅱphotometric method for the determination of magnesium content (English Version)
This standard specifies the spectrophotometric method for the determination of magnesium content by using copper reagent to separate xylidine blue II. This standard applies to the determination of magnesium in ductile iron. Measuring range: 0.010% to 0.10%.
GB/T 223.45-1994 history
1994GB/T 223.45-1994 Methods for chemical analysis of iron,steel and alloy. The cupral Separation-xylidyl blue Ⅱphotometric method for the determination of magnesium content
1985GB 223.45-1985 Methods for chemical analysis of iron,steel and alloy--The cupral separation-xylidyl blue 2 photometric method for the determination of magnesium content
GB/T 223.45-1994 Methods for chemical analysis of iron,steel and alloy. The cupral Separation-xylidyl blue Ⅱphotometric method for the determination of magnesium content has been changed from GB 223.45-1985 Methods for chemical analysis of iron,steel and alloy--The cupral separation-xylidyl blue 2 photometric method for the determination of magnesium content.