This European Standard is applicable to determining the leaching behaviour of inorganic and non-volatile organic substances from granular waste (without or with size reduction). The waste body is subjected to percolation with water as a function of liquid to solid ratio under specified percolation conditions. The waste is leached under hydraulically dynamic conditions. The method is a once-through column leaching test and the test results establish the distinction between different release patterns, for instance wash-out and release under the influence of interaction with the matrix, when approaching local equilibrium between waste and leachant. This test method produces eluates, which can subsequently be characterized by physical, chemical and ecotoxicological methods according to existing standard methods. NOTE 1 The mentioned specified percolation conditions are arbitrary and are not necessarily simulating a specific scenario. NOTE 2 Waste materials that show a saturated hydraulic conductivity between 10-7 m/s and 10-8 m/s can be subjected to this test, but it can be difficult to maintain the imposed flow rate. If a waste shows a saturated hydraulic conductivity below 10-8 m/s, the test will preferably not be carried out. NOTE 3 This procedure is generally not applicable to biologically degrading materials and materials reacting with the leachant, leading, for example, to excessive gas emission or excessive heat release. NOTE 4 This procedure is applicable to materials showing solidification in the column, if the final hydraulic conductivity is within the specified range. NOTE 5 It is not always possible to optimise test conditions simultaneously for inorganic and non-volatile organic substances and optimum test conditions may also vary between different groups of non-volatile organic substances. Test requirements for non-volatile organic substances are generally more stringent than those for inorganic constituents. The test conditions suitable for measuring the release of non-volatile organic substances will generally also be applicable to inorganic substances. NOTE 6 For ecotoxicological testing, eluates representing the release of both inorganic and non-volatile organic substances are needed. In this standard ecotoxicological testing is meant to include also genotoxicological testing. NOTE 7 Validation data for non-volatile organic substances are not currently available, but will be added on revision when available.
EN 14405:2017 Referenced Document
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
EN 12457-2:2002 Characterisation of waste - Leaching; Compliance test for leaching of granular waste materials and sludges - Part 2: One stage batch test at a liquid to solid ratio of 10 l/kg for material with particle size below 4 mm (without or with size reduction)
EN 12457-3:2002 Characterisation of waste - Leaching; Compliance test for leaching of granular waste materials and sludges - Part 3: Two stage batch test at a liquid to solid ratio of 2 l/kg and 8 l/kg for materials with high solid content and with particle size below 4
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)
EN 14346:2006 Characterization of waste - Calculation of dry matter by determination of dry residue or water content*， 2024-04-20 Update
EN 14429:2015 Characterization of waste - Leaching behaviour test - Influence of pH on leaching with initial acid/base addition
EN 14899:2005 Characterization of waste Sampling of waste materials Framework for the preparation and application of a Sampling Plan*， 2024-04-20 Update
EN 14997:2015 Characterization of waste - Leaching behaviour tests - Influence of pH on leaching with continuous pH-control
EN 15002:2015 Characterization of waste - Preparation of test portions from the laboratory sample
EN 16192:2011 Characterization of waste - Analysis of eluates*， 2024-04-20 Update
EN ISO 3696:1995 Water for Analytical Laboratory Use- Specification and Test Methods (ISO 3696 : 1987)
EN ISO 5667-3:2012 Water quality - Sampling - Part 3: Preservation and handling of water samples*， 2024-04-20 Update
ISO 11464:2006 Soil quality - Pretreatment of samples for physico-chemical analysis
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
EN 14405:2017 history
2017EN 14405:2017 Characterization of waste - Leaching behaviour test - Upflow percolation test (under specified conditions)