This practice has not been updated since its original publication in 1995. Users in Australia, including Nikola Van de Wetering at the Univ. of Queensland, are using the technique described in the practice extensively and are prepared to offer siginificant revision and improvement.
Keywordscoal microscopical analysis; etching; polishing; Coal sampling systems; Etching (materials/process); Light transmission and reflection; Microscopic examination--coal; Polishing; Reflectance and reflectivity--coal;
Draft Under Development