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Investigations of raw material in hard-coal-mining - Microscopical examination of hard coal, coke and briquettes - Part 2: Preparation of polished surface from lump material and particulate blocks.
STANDARD published on 1.8.1998
Designation standards: DIN 22020-2:1998-08
Publication date standards: 1.8.1998
SKU: NS-190954
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: German technical standard
Category: Technical standards DIN
Rohstoffuntersuchungen im Steinkohlenbergbau - Mikroskopische Untersuchungen an Steinkohle, Koks und Briketts - Teil 2: Herstellung von Körnerschliffen und Stückschliffen.
WITHDRAWN
1.8.1985
WITHDRAWN
1.8.1985
1.10.1993
WITHDRAWN
1.3.2008
WITHDRAWN
1.1.1985
1.3.1985
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