DIN Standards Committee Building and Civil Engineering
EN ISO 14689
Geotechnical investigation and testing - Identification, description and classification of rock (ISO 14689:2017)
Geotechnische Erkundung und Untersuchung - Benennung, Beschreibung und Klassifizierung von Fels (ISO 14689:2017)
Responsible national committee
NA 005-05-02 AA - Identification, description and classification of soil and rock