GOST 1050-1988 Carbon structural quality steel gauged bars with special surface finish. General specifications
GOST 10742-1971 Brown coals, hard coals, anthracite, combustible shales and coal briquettes. Methods of sampling and preparation of samples for laboratory tests
GOST 25336-1982 Laboratory glassware and equipment. Basic parameters and dimensions
GOST 25543-1988 Brown coals, hard coals and anthracites. Classification according to genetic and technological parameters