NA 062
DIN Standards Committee Materials Testing
DIN 51721 [Withdrawn] referenced in following documents:
Document number | Edition | Title |
---|---|---|
DIN 22011 | 1993-11 | Investigations of the raw material in hard-coal-mining; treatment of exploratory drillings More |
DIN 22020-1 | 1998-08 | Investigations of raw material in hard-coal-mining - Microscopical examination of hard coal, coke and briquettes - Part 1: Terms, survey of processes and their applications More |