CEN ISO/TS 21268-3:2009 Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials - Part 3: Up-flow percolation test (ISO/TS 21268-3:2007)
This part of ISO/TS 21268 specifies a test aimed at determining the leaching behavior of inorganic and organic components from soils and soil materials. The procedure involves a percolation test with a single passage of water (0.001 mol/l CaCl2) under standardized flow rate conditions. The material is leached under hydraulically dynamic conditions. The eluates obtained can be used to determine the ecological properties of the soil in terms of microorganisms, fauna and flora. The test results enable the distinction between different release patterns, such as: B. Leaching and release under the influence of interaction with the matrix as the local equilibrium between material and leaching agent is approached. The present test method produces eluates which can then be characterized using physical, chemical and ecotoxicological methods according to existing standard methods. The results of the eluate analysis are presented as a function of the liquid/solid ratio. The test is not suitable for species that are volatile under ambient conditions. NOTE 1 Volatile organic components include low molecular weight components in mixtures such as: B. mineral oil. NOTE 2 It is not always possible to optimize test conditions for inorganic and organic components simultaneously, and the optimal test conditions may also differ for different groups of organic components. The testing requirements for organic components are generally stricter than for inorganic components. The test conditions suitable for measuring the release of organic components are generally also applicable to inorganic components. NOTE 3 Ecotoxicological studies require eluates that reflect the release of both inorganic and organic pollutants. In this document, the ecotoxicological study also includes the genotoxicological study. The use of this test method alone is not sufficient to determine the leaching behavior of a material under specified conditions different from those in this test method, as this generally requires the use of multiple test methods, the establishment of behavior models and their validation. This part of ISO/TS 21268 does not address health and safety issues. It is only used to determine the leaching properties shown in Section 4.
CEN ISO/TS 21268-3:2009 Referenced Document
ISO 10381-1:2002 Soil quality - Sampling - Part 1: Guidance on the design of sampling programmes
ISO 10381-2:2002 Soil quality - Sampling - Part 2: Guidance on sampling techniques
ISO 10381-3:2001 Soil quality - Sampling - Part 3: Guidance on safety
ISO 10381-4:2003 Soil quality - Sampling - Part 4: Guidance on the procedure for investigation of natural, near-natural and cultivated sites
ISO 10381-5:2005 Soil quality - Sampling - Part 5: Guidance on the procedure for the investigation of urban and industrial sites with regard to soil contamination
ISO 10381-6:2009 Soil quality - Sampling - Part 6: Guidance on the collection, handling and storage of soil under aerobic conditions for the assessment of microbiological processes, biomass and diversity in the laboratory
ISO 11465:1993 Soil quality; determination of dry matter and water content on a mass basis; gravimetric method
ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
ISO 5667-3:2003 Water quality - Sampling - Part 3: Guidance on the preservation and handling of water samples
ISO 7027:1999 Water quality - Determination of turbidity
CEN ISO/TS 21268-3:2009 history
2019EN ISO 21268-3:2019 Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials - Part 3: Up-flow percolation test (ISO 21268-3:2019)
2009CEN ISO/TS 21268-3:2009 Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials - Part 3: Up-flow percolation test (ISO/TS 21268-3:2007)