NA 005
DIN Standards Committee Building and Civil Engineering
DIN 21920-4 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| DIN 21901 | 1984-02 | Mine plans; structure and list of standards; general principles More |
| DIN 21904 | 1994-01 | Mine plants; lettering More |
| DIN 21905 | 1993-11 | Mine plants; drawing principles More |
| ISO 710-5 | 1989-07 | Graphical symbols for use on detailed maps, plans and geological cross-sections; part 5: representation of minerals More |
