This standard establishes methods for determining chromium in ferrosilicon: atomic absorption (with a mass fraction of chromium from 0.05% to 1.2%), phot.
GOST 24991-1981 Ferrochromium, ferrosilicochromium, ferrosilicon, ferrosilicomanganese, ferromanganese. Methods of sampling and sample preparation for chemical and physical-chemical analyses
GOST 28473-1990 Iron, steel, ferroalloys, metal chromium and metal manganese. General requirements for methods of analysis