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The document applies to macropetrographic classification and topographic survey of hard-coal and surrounding strata.
| Author | DIN |
|---|---|
| Editor | DIN |
| Document type | Standard |
| Format | File |
| Cancellation date | |
| Confirmation date | |
| expiration_de_validite | |
| ICS | 73.040 : Coals
|
| Number of pages | 8 |
| Replace | DIN 21900 (1951-08, t) |
| Set | DIN-TAB 272-1999 |
| Year | 1990 |
| Document history | DIN 22012 (1994-01) |
| Country | Germany |
| Keyword | 22012 |