This standard applies to unoxidized enriched and unenriched coals of the Kuznetsk basin intended for coking and enrichment at enterprises of the Ministry of Ferrous Metallurgy of the USSR
GOST 8163-1987 history
1998GOST 8163-1987 Kuznetsk basin coals for coking. Specifications
1970GOST 8163-1978 Kuznetsk basin coals for coking. Technical requirements