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
Rachel Fuller Brown additional minor contributions to the field of bacteriology until their retirement. Brown died on January 14, 1980 at the age of 81 in Albany, New York. Royalties for nystatin totaled $13.4 million. As Brown and Hazen did not want any of the money for themselves, the philanthropic Research Corporation used half for grants to further scientific research and the other half to support what became known as the Brown-Hazen Fund. Both Brown and Hazen received many awards for their collaborative work, the first major prize being the Squibb Award in Chemotherapy in 1955. Brown was also elected fellow of the