GOST 15054-1980 Iron ores, concentrates, agglomerates and pellets. Methods of sampling and sample preparation for chemical analysis and determination of moisture content
GOST 23581.0-1980 Iron ores, concentrates, agglomerates and pellets. General requirements to the methods of chemical analyses
GOST 23581.18-1981 Iron ores, concentrates, agglomerates and pellets. Method for the determination of total iron