1. ASTM D 3172. Standard Practice for Proximate Analysis Sample of Coal and Coke.
2. ASTM D 3173. Standard Test Method for Moisture in the Analysis Sample of Coal and Coke.
3. ASTM D 3174. Standard Test Method for Ash in the Analysis Sample of Coal and Coke.
4. ASTM D 3175. Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke.
5. ASTM D 409. Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method.