NF ISO 21268-5, X31-607-5 (12/2023)

This document specifies a test that simulates the available on-site concentrations of inorganic (such as heavy metals, arsenic and phosphorus) and organic substances present in soil and soil-like materials, under aerobic and forced anaerobes. Toxicity can then be estimated based on these available concentrations. The aim of the test described in this document is to study the release of organic and inorganic substances from soil and soil-like materials and to produce eluates intended for ecotoxicological tests. For more information on ecotoxicological testing, see ISO 15799 and ISO 17616. The eluate obtained can then be characterized by physical, chemical and ecotoxicological methods according to existing standardized methods. The test is not suitable for substances which are volatile under ambient conditions. This procedure does not apply to materials with a dry matter content of less than 33%. This test is intended primarily for routine monitoring and analysis purposes, and cannot be used alone to describe all leaching properties of a soil. Further leaching trials are needed to achieve this broader goal. This document does not address health and safety issues. It only allows the determination of leaching properties as described in Article 4.
(Automatic translation from French)