Term
|
Description |
Coals with a gross calorific value (moist, ash- free basis) less than 24 MJ/ kg and a vitrinite mean random reflectance less than 0.6 per cent. Brown coal comprises sub-bituminous coal and lignite (15). |
Source |
United Nations, International Recommendations for Energy Statistics. Statistical Papers, Series M, No. 93 (United Nations publication, Sales No. E.14.XVII.11). |
|