NA 005
DIN Standards Committee Building and Civil Engineering
DIN 21920-1 [Withdrawn] references following documents:
| Document number | Edition | Title |
|---|---|---|
| BBergG | 1980-08-13 | Federal Mining Act (BBergG) More |
| DIN 21901 | 1984-02 | Mine plans; structure and list of standards; general principles More |
| ISO 710-2 | 1974-09 | Graphical symbols for use on detailed maps, plans and geological cross-sections; Part II : Representation of sedimentary rocks More |
