Geotechnical investigation and testing - Testing of geotechnical structures - Part 4: Testing of piles: dynamic load testing (ISO 22477-4:2018); German version EN ISO 22477-4:2018— 64 стр.
Geotechnical investigation and testing - Testing of geotechnical structures - Part 4: Testing of piles dynamic load testing (ISO/DIS 22477-4:2016); German and English version prEN ISO 22477-4:2016