prEN ISO 22476-4

Geotechnical engineering - Field testing - Borehole expansion tests

Scope

This European standard specifies requirements for indirect ground investigations of soil by borehole expansion tests within the scope of the geotechnical investigations and testing in accordance with ENV 1997. The purpose of this European standard is to eliminate as far as possible erroneous assessments of subsoil conditions as well as to limit scatter when repeating tests and improve reproducibility when undertaking borehole expansion testing.