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A black, natural fossil organic sediment with a gross calorific value of more than 23 860 kJ/kg (5 700 kcal/kg) in the ash-free condition and with the moisture content obtaining at a temperature of 30 degrees C and relative air humidity of 96 per cent, and with a mean random reflectance of vitrinite of at least 0.6.

Hard coal is calculated by the International Energy Agency as the sum of Coking coal and Steam coal (Electricity information 2001, International Energy Agency, Paris – Part II).

Source Publication:
Glossary for Transport Statistics, prepared by the Intersecretariat Working Group on Transport Statistics – Eurostat, European Conference of Ministers of Transport (ECMT), United Nations Economic Commission for Europe (UNECE).

Statistical Theme: Energy statistics

Created on Tuesday, June 18, 2002

Last updated on Wednesday, July 31, 2002