1. ASTM D1102. Standard test method for ash in wood.
2. ASTM D 3172. Standard Practice for Proximate Analysis of Coal and Coke.
3. ASTM D 3173. Standard Test Method for Moisture in the Analysis Sample of Coal and Coke.
4. ASTM D 3174. Standard Test Method for Ash in the Analysis Sample of Coal and Coke.
5. ASTM D 3175. Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke.