GB/T 223.58-1987 Methods for chemical analysis of iron,steel and alloy--The sodium arsenite-sodium nitrite titrimetric method for the determination of manganese content (English Version)
This standard applies to the determination of manganese in pig iron, carbon steel, alloy steel and iron powder. Measuring range: 0.10 to 2.50%. This standard complies with GB1467-78 "General Rules and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
GB/T 223.58-1987 history
1987GB/T 223.58-1987 Methods for chemical analysis of iron,steel and alloy--The sodium arsenite-sodium nitrite titrimetric method for the determination of manganese content