: The water level in the borehole is maintained at a constant height above or below the static water level, and the volume of water required to maintain this level is measured over time. Equipment and Technical Requirements
: Devices must be accurate to within 0.01 meters .
BS EN ISO 22282-2 outlines three primary methods for measuring permeability ( ) based on the ground's expected flow characteristics: : Best for : Higher permeability soils (typically
: Contains raw data, including borehole location, depth of the test section, initial water levels, and time-stamped measurements during the test.