DIN 21920-1:1988
Mine plans; petrography; generally applicable symbols; sediments
- Standard No.
- DIN 21920-1:1988
- Release Date
- 1988
- Published By
- German Institute for Standardization
- Status
- Replace By
- DIN 21920-1:2013
- DIN 21920-1 E:2011-11
- Latest
- DIN 21920-1:2013-03
DIN 21920-1:1988 history
- 2013 DIN 21920-1:2013-03 Mine plans - Petrography - Part 1: Generally applicable symbols - Sediments
- 2013 DIN 21920-1:2013 Mine plans - Petrography - Part 1: Generally applicable symbols - Sediments
- 1988 DIN 21920-1:1988 Mine plans; petrography; generally applicable symbols; sediments
