NA 062
DIN Standards Committee Materials Testing
Standards
[Withdrawn]
ISO 7404-5
ISO 7404-5
Methods for the petrographic analysis of bituminous coal and anthracite - Part 5: Method of determining microscopically the reflectance of vitrinite
Title (German)
Petrographische Untersuchungsverfahren für bituminöse Kohlen und Anthrazite - Teil 5: Mikroskopische Reflexionsmessungen an Vitriten
Responsible national committee
NA 062-02-83 AA - Testing of solid fuels