Lignite
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Asia-Pacific Economic Cooperation (APEC)European Commission - EurostatLignite and derivatives comprise lignite, brown coal coke, brown coal briquettes, peat and peat briquettes. This coal has a gross calorific value of less than 17 435 kJ/kg (4 165 kcal/kg) and contains volatile matter greater than 31% on a dry mineral free basis. Oil shale and tar sands produced and combusted directly are also covered here.International Energy Agency (IEA)Non-agglomerating coal with a gross calorific value less than 17 435 kJ/kg (4 165 kcal/kg) and greater than 31% volatile matter on a dry mineral matter free basis.United Nations Economic Commission for Europe (UNECE)Non-agglomerating coal with a gross calorific value less than 17 435 kJ/kg (4 165 kcal/kg) and greater than 31% volatile matter on a dry mineral matter free basis.UNSD Energy Statistics SectionNon-agglomerating coals with a gross calorific value elss than 17,435 KJ/kg (4,165 kcal/kg) and greater than 31 per cent volatile matter on a dry mineral matter free basis.
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