Each year, billions of tonnes of coal are traded in regional and international market for use in power generation, steel and cement making, and many other purposes. In commercial operations, the price of coal not only reflects the quantity of coal but also reflects the relationship of a desirable property or a combination of properties to performance of the coal under service conditions. The properties of coal often form the basis of sale contracts, and payment for the coal is based on the analytical results. Coal is a very heterogeneous material containing various organic matter and inorganic (mineral) matter, and exhibits a wide range of physical properties. The analysis of coal is generally performed on the coal samples taken from the bulk material and not from the individual components. Given the extreme complexity of coal, coal sampling protocols must provide material that is representative of the lot sampled. To ensure a representative sample is collected, correct sampling procedures should be followed and certain rules adhered to. Also, analyses of coal need to be sufficiently accurate so as to preclude negative scientific or economic consequences. All coal analyses should follow standard procedures in order to obtain repeatable and reproducible results. This report reviews various aspects of coal sampling and analysis. It provides descriptions of standard procedures for coal sampling, preparation and routine tests of coal specified in the international Standards. The commonly used instrumental techniques for routine coal analysis and their recent developments are also reviewed in this report.
Title: Coal sampling and analysis standards, CCC/235
Author(s): Qian Zhu
ISBN: ISBN: 987-92-9029-555-6
Publication Date: 01/06/2014