1. ASTM, 2007. D1412-07 standard test method for equilibrium moisture of coal at 96 to 97 percent relative humidity and 30°C.
2. ASTM International, 2010. D3302/D3302M-10, standard test method for total moisture in coal.
3. ASTM D388, 2005. Standard classification of coals by rank. IHS, Pennsylvania, United States.
4. ASTM D7582, 2010. Standard test methods for proximate analysis of coal and coke by macro thermogravimetric analysis.
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