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BS EN ISO 18772:2014

Current

Current

The latest, up-to-date edition.

Soil quality. Guidance on leaching procedures for subsequent chemical and ecotoxicological testing of soils and soil materials

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-05-2014

€271.12
Excluding VAT

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General approach
5 Case 1: Application of leaching tests to determine the
  leaching behaviour of soil in the framework of impact
  assessment
6 Case 2: Compliance and comparison purposes
7 Description of test methods
8 Example: how to use leaching test results to assess
  the impact of soil on groundwater
Annex A (informative) - Schematic representation of a
        contaminated site with relevant targets
Annex B (informative) - Comparison at different scales
        of testing (laboratory, lysimeter and field scale)
Bibliography

Gives guidance on the appropriate use of leaching tests on soil and soil materials, in order to determine the leaching behaviour in the framework of impact assessment, or for compliance and comparison purposes.

Committee
EH/4
DevelopmentNote
Renumbers and supersedes BS ISO 18772. 2014 Version incorporates corrigendum to BS ISO 18772. Supersedes 06/30154693 DC. (05/2014)
DocumentType
Standard
Pages
40
PublisherName
British Standards Institution
Status
Current
Supersedes

This International Standard provides guidance on the appropriate use of leaching tests on soil and soil materials, in order to determine the leaching behaviour in the framework of impact assessment, or for compliance and comparison purposes, including information on the following:

  • the choice of leaching tests, depending on the nature of the problem to be solved and the specific features of the different tests;

  • the interpretation of the test results;

  • the limitations of the tests.

In this respect, it is important to keep in mind that leaching tests do not aim to simulate real field conditions, but are designed to address the contact between a solid and a liquid phase for different purposes that are described in this International Standard.

This International Standard only concerns natural, contaminated and agricultural soils and soil materials. Questions relating to the leaching of wastes are not covered by this International Standard. It also does not cover the subject of bioavailability of contaminants to living organisms, which is covered by ISO 17402.

Leaching tests are designed and used for characterisation of the source term. It may be possible to address transport aspects with leaching tests if some basic requirements are known (e.g. hydrodynamic), thus allowing the determination of key transport parameters (e.g. retardation factors, particle-facilitated transport, attenuation processes).

In this International Standard, when the term “soil?? is only quoted to simplify the writing, the broader term “soil and soil materials?? shall be considered.

Standards Relationship
ISO 18772:2008 Identical
EN ISO 18772:2014 Identical

ISO/TS 21268-3:2007 Soil quality Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials Part 3: Up-flow percolation test
ISO 11074:2015 Soil quality — Vocabulary
CEN/TS 14429:2005 Characterization of waste - Leaching behaviour tests - Influence of pH on leaching with initial acid/base addition
ISO/TS 21268-1:2007 Soil quality Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials Part 1: Batch test using a liquid to solid ratio of 2 l/kg dry matter
ISO/TS 21268-4:2007 Soil quality Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials Part 4: Influence of pH on leaching with initial acid/base addition
EN 12457-4:2002 Characterisation of waste - Leaching - Compliance test for leaching of granular waste materials and sludges - Part 4: One stage batch test at a liquid to solid ratio of 10 l/kg for materials with particle size below 10 mm (without or with size reduction)
ISO/TS 21268-2:2007 Soil quality Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials Part 2: Batch test using a liquid to solid ratio of 10 l/kg dry matter
EN 12457-1:2002 Characterisation of waste - Leaching - Compliance test for leaching of granular waste materials and sludges - Part 1: One stage batch test at a liquid to solid ratio of 2 l/kg for materials with high solid content and with particle size below 4 mm (without or with size reduction)
EN 12920:2006+A1:2008 Characterization of waste - Methodology for the determination of the leaching behaviour of waste under specified conditions
CEN/TS 14405 : 2004 CHARACTERIZATION OF WASTE - LEACHING BEHAVIOUR TESTS - UP-FLOW PERCOLATION TEST (UNDER SPECIFIED CONDITIONS)
ISO 17402:2008 Soil quality — Requirements and guidance for the selection and application of methods for the assessment of bioavailability of contaminants in soil and soil materials

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