1. ASTM (American Society for Testing and Materials), 2002. D3175 Standard test method for volatile matter in the analysis sample of coal and coke. Annual Book of ASTM Standards: Section 5, Petroleum products, lubricants and fossil fuels, 05.06 (Gaseous fuels; coal and coke).
2. ASTM, 2003. D3173 Standard test method for moisture in the analysis sample of coal and coke. Annual Book of ASTM Standards: Section 5, Petroleum products, lubricants and fossil fuels, 05.06 (Gaseous fuels; coal and coke).
3. ASTM, 2004a. D3174 Standard test method for ash in the analysis sample of coal and coke. Annual Book of ASTM Standards: Section 5, Petroleum products, lubricants and fossil fuels, 05.06 (Gaseous fuels; coal and coke).
4. ASTM, 2004b. D4239 Standard test method for sulphur in the analysis sample of coal and coke using high temperature tube furnace combustion methods. Annual Book of ASTM Standards: Section 5, Petroleum products, lubricants and fossil fuels, 05.06 (Gaseous fuels; coal and coke).
5. ASTM, 2004c. D5865 Standard test method for gross calorific value of coal and coke. Annual Book of ASTM Standards: Section 5, Petroleum products, lubricants and fossil fuels, 05.06 (Gaseous fuels; coal and coke).