Investigations of raw material in hard-coal-mining - Microscopical examination of hard coal, coke and briquettes - Part 1: Terms, survey of processes and their applications— 7 стр.
Testing of solid and liquid fuels - Determination of the gross calorific value by the bomb calorimeter and calculation of the net calorific value - Part 2: Method using isoperibol ot static, jacket calorimeter— 11 стр.
Testing of solid and liquid fuels - Determination of gross calorific value by the bomb calorimeter and calculation of net calorific value - Part 3: Method using adiabatic jacket— 11 стр.