This part of ISO 7404 defines terms that are used in connection both with maceral and microlithotype analyses carried out in white light and with the determination of the reflectance of vitrinite. It applies to the terms used in the examination of bituminous coal and anthracite only and is not concerned with the analysis of brown coal, sub-bituminous coal or lignite. This part of ISO 7404 is not intended to be a comprehensive glossary of coal petrographic terminology, nor does it attempt to provide sufficient information to allow recognition of all the coal components described. Further information may be obtained from the International Handbook of Coal Petrography (see the fourth paragraph of the introduction).