Investigations of the raw material in hard-coal-mining; treatment of exploratory drillings
Edition 1993-11

German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Jet grouting work
Edition 2019-09

Mine plans - Drilling and cavern - Part 1: Drilling
Edition 2005-10

Petroleum and natural gas industries - Drilling fluids - Processing equipment evaluation (ISO 13501:2011); English version EN ISO 13501:2011
Edition 2011-09

Execution of special geotechnical work - Bored piles; German version EN 1536:2010+A1:2015
Edition 2015-10

Viscosimetry; capillary viscometers with circular and rectangular cross section for determination of flow curves; principles, concepts, definitions
Edition 1994-02

Workplace exposure - Measurement of exposure by inhalation to chemical agents - Strategy for testing compliance with occupational exposure limit values; German version EN 689:2018+AC:2019
Edition 2020-01

Mining - Mobile machines working underground - Machine safety (ISO 19296:2018); German version EN ISO 19296:2018
Edition 2019-04