GOST
Bituminous materials. Determination of substances insoluble in quinoline
Document status: Active
Brown coals, hard coals, anthracite, combustible shales and turf. Method for the determination of free calcium oxide in the ash
Document status: Active
Molybdenum concentrates. Methods for the determination of carbon content
Document status: Active
Petroleum products. Determination of carbon residue. Conradson method
Document status: Active
