BS EN ISO 22475-1:2021

This standard BS EN ISO 22475-1:2021 Geotechnical investigation and testing. Sampling methods and groundwater measurements is classified in these ICS categories:

• 93.020 Earthworks. Excavations. Foundation construction. Underground works

This document deals with principles of sampling of soil, rock and groundwater as part of the programme of geotechnical investigation and testing.

The aims of such ground investigations are:

1. to recover soil, rock and water samples of a quality appropriate to assess the general suitability of a site for geotechnical engineering purposes and to determine the required ground characteristics in the laboratory;

2. to obtain information on the sequence, thickness and orientation of strata and discontinuities;

3. to establish the type, composition and condition of strata;

4. to obtain information on groundwater conditions and recover water samples for assessment of the interaction of groundwater, soil, rock and construction material.

Soil sampling for the purposes of agricultural and environmental soil investigation is not covered.

Water sampling for the purposes of quality control, quality characterisation and identification of sources of pollution of water, including bottom deposits and sludges, is not covered.