DIN 21941 [Withdrawn] referenced in following documents:
Document number | Edition | Title |
---|---|---|
Document number DIN 21901 | Edition 1984-02 | Title Mine plans; structure and list of standards; general principles More |
Document number DIN 22011 | Edition 1993-11 | Title Investigations of the raw material in hard-coal-mining; treatment of exploratory drillings More |
Document number DIN 22015 | Edition 1993-10 | Title Investigations of the raw material in hardcoal-mining; macroscopic classification and description of overburden rock More |