If you are looking for specific guidance on performing the tests, I can provide a breakdown of the (falling head vs. constant head).
This article provides a deep dive into what this standard covers, why it is essential, how to obtain the official PDF, and the key distinctions between its testing methodologies.
In geotechnical engineering and environmental site investigations, understanding the hydraulic conductivity of soil and rock is critical. is the internationally recognized standard that defines the parameters, equipment, and procedures for measuring water permeability below the groundwater table using borehole tests.
(for non-UK users):
Geotechnical investigation and testing — Geohydraulic testing — Part 2: Water permeability tests in a borehole using open systems.
Establish above and below the water table.
For constant head : Initiate flow and adjust the valve until the water level locks into a steady position. bs en iso 22282-2 pdf
: The International Organization for Standardization provides the "ISO" base document.
This feature is structured to provide an overview for professionals in geotechnical engineering, civil engineering, and procurement who are looking to understand the scope and application of this standard.
: By following the rigorous procedures in the BS EN ISO 22282-2 PDF , contractors like Stuart Wells were able to provide precise permeability values. These numbers allowed the designers to build safer foundations, plan effective dewatering, and ultimately keep the project on track. Why This Standard Matters If you are looking for specific guidance on
This standard is a published by the British Standards Institution (BSI) and the International Organization for Standardization (ISO) .
The primary purpose of BS EN ISO 22282-2 is to provide a standardized approach to measuring the hydraulic conductivity (permeability) of ground materials. This information is vital for:
You can access or purchase the full documentation through the BSI Knowledge portal or other authorized standards retailers like summary of the calculation formulas Establish above and below the water table