Coal assay Coal assay Coal analysis techniques are specific analytical methods designed to measure the particular physical and chemical properties of coals. These methods are used primarily to determine the suitability of coal for coking, power generation or for iron ore smelting in the manufacture of steel. Coal comes in four main types or ranks: lignite or brown coal, bituminous coal or black coal, anthracite and graphite. Each type of coal has a certain set of physical parameters which are mostly controlled by moisture, volatile content (in terms of aliphatic or aromatic hydrocarbons) and carbon content. Moisture is an important property of
World Figure Skating Championships cumulative medal count World Figure Skating Championships cumulative medal count The following is the "cumulative medal count" for countries at the World Figure Skating Championships. It includes countries that no longer exist. Boldface denotes active skaters and highest medal count among all skaters (including these who not included in these tables) per type. Boldface denotes active skaters and highest medal count among all skaters (including these who not included in these tables) per type. Boldface denotes active skaters and highest medal count among all pairs or separate partners (including these who not included in these tables) per type. Italic denotes statistics of performances