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2. Annual Book of ASTM Standards, Moisture in the Analysis Sample of Coal and Coke, Part 26, 1977, D3173–73.
3. Annual Book of ASTM Standards, Volatile Matter in the Analysis Sample of Coal and Coke, Part 26, 1977, D3175–77.
4. Annual Book of ASTM Standards, Ash in the Analysis Sample of Coal and Coke, Part 26, 1977, D3174–73.
5. Annual Book of ASTM Standards, Gross Calorific Value of Solid Fuel by the Adiabatic Bomb Calorimeter, Part 26, 1977, D2015–66.