DIN 22012:1994
Investigations of the raw material in hard-coal-mining; macropetrographic classification and topographic survey of hard-coal and host rock

Standard No.

DIN 22012:1994

Release Date

1994

Published By

German Institute for Standardization

Latest

DIN 22012:1994

Replace

DIN 21900:1951 DIN 21941:1953 DIN 22012:1989

Scope

The document applies to macropetrographic classification and topographic survey of hard-coal and surrounding strata.

DIN 22012:1994 history

• 1994 DIN 22012:1994 Investigations of the raw material in hard-coal-mining; macropetrographic classification and topographic survey of hard-coal and host rock
• 0000 DIN 22012:1989
• 1984 DIN 21901:1984 Mine plans; structure and list of standards; general principles
• 0000 DIN 21941:1953
• 0000 DIN 21900:1951