This standard describes the terms used in maceral and microlithotype analyzes performed under white light, as well as those
GOST 9414.1-1994 Referenced Document
GOST 12112-1978 Brown coals. Method for determination of petrographic composition
GOST 12113-1994 Brown coals, hard coals, anthracites, solid dispersed organic matters and carbon materials. Method for determination of reflectance indices