Published: Jan 2007
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OVER THE PAST TWO DECADES THERE HAVE BEEN SEVERAL NEW ASTM standard test methods developed that introduced new analytical instrumentation into the area of routine coal analysis. Instrumentation examples include inductively coupled plasma-atomic emission spectroscopy (ICP-AES), inductively coupled plasma-mass spectroscopy (ICP-MS), graphite furnace atomic absorption spectrometry (GFAAS), macro-thermogravimetric analyzer (macro-TGA), and automated elemental analyzers for carbon, hydrogen, and nitrogen, mercury, arsenic, selenium, and chlorine. In addition there have been computerbased automatic controllers and recorders developed for several types of instrumentation. Examples include calorimeters, plastometers, and dilatometers. The introduction of microcomputers and their interfacing with analytical instrumentation has revolutionized laboratories everywhere over this time period. Coal analysis laboratories have benefited greatly from these developments as well. Most of the time the new analytical instrumentation performs tests and analyses in a fraction of the time needed for classical methods of analysis. Several ASTM standard test methods have been revised to include computer-controlled instrumentation for data gathering, interpretation, and reporting. At the same time there are many analytical instruments available that can be used for coal analysis and characterization which have not been developed into standard test methods.
Paper ID: MNL11275M