DIN EN ISO 22475-1:2022-02 Geotechnical investigation and testing - Sampling methods and groundwater measurements - Part 1: Technical principles for the sampling of soil, rock and groundwater (ISO 22475-1:2021); German version EN ISO 22475-1:2021
2022DIN EN ISO 22475-1:2022-02 Geotechnical investigation and testing - Sampling methods and groundwater measurements - Part 1: Technical principles for the sampling of soil, rock and groundwater (ISO 22475-1:2021); German version EN ISO 22475-1:2021
2019DIN EN ISO 22475-1:2019 Geotechnical investigation and testing - Sampling of soil, rock and ground water - Part 1: Technical principles (ISO/DIS 22475-1.2:2019); German and English version prEN ISO 22475-1:2019
2007DIN EN ISO 22475-1:2007 Geotechnical investigation and testing - Sampling methods and groundwater measurements - Part 1: Technical principles for execution (ISO 22475-1:2006); English version of DIN EN ISO 22475-1:2007-01