PD CEN/TS 15864:2015
Characterization of waste. Leaching behaviour test for basic characterization. Dynamic monolithic leaching test with continuous leachant renewal under conditions relevant for specified scenario(s)

Standard No.

PD CEN/TS 15864:2015

Release Date

2015

Published By

European Committee for Standardization (CEN)

Latest

PD CEN/TS 15864:2015

Replace

CEN/TS 15864-2012 FprCEN/TS 15864-2015

Scope

This Technical Specification is applicable for determining the leaching behaviour of monolithic wastes under dynamic conditions. The test is performed under experimental conditions relevant to assess the leaching behaviour in view of the considered scenario(s). This test is aimed at determining the release as a function of time of inorganic constituents from a monolithic waste, when it is put into contact with an aqueous solution (leachant). In general, the composition, the temperature and the continuous renewal rate of the leachant are chosen such that the leaching behaviour of the waste material can be studied in view of the considered disposal or recovery scenario. When the release needs to be determined without any reference to a specific scenario, the leachant is demineralized water, the temperature and the continuous renewal rate are fixed. This dynamic monolithic leaching test (DMLT) is a parameter specific test as specified in EN 12920 and is therefore not aimed at simulating real situations. The application of this test method alone is not sufficient for the determination of the detailed leaching behaviour of a monolithic waste under specified conditions. In the framework of EN 12920 and in combination with additional chemical information, the test results are used to identify the leaching mechanisms and their relative importance. The intrinsic properties can be used to predict the release of constituents at a given time frame, in order to assess the leaching behaviour of monolithic waste materials, placed in different situations or scenarios (including disposal and recycling scenarios). The test method applies to regularly shaped test portions of monolithic wastes with minimum dimensions of 40 mm in all directions that are assumed to maintain their integrity over a time frame relevant for the considered scenario. The test method applies to test portions for which the geometric surface area can be determined with the help of simple geometric equations. The test method applies to low permeable monolithic materials. NOTE 1 If, in order to comply with the requirements of regular shape, the test portion is prepared by cutting or coring, then new surfaces are exposed which can lead to change(s) in leaching properties. On the other hand if the test portion is prepared by moulding, the surface will be dependent to the type of mould and the conditions of storage. If the intention is to evaluate the behaviour of the material core, the specimen needs to be stored without any contact with air to avoid carbonation. NOTE 2 For monolithic waste materials with a saturated hydraulic conductivity higher than 10-8 ms-1, water is likely to percolate through the monolith rather than flow around it. In such cases, relating the release to the geometric surface can lead to misinterpretation. A percolation test is then more appropriate (e. g. CEN/TS 14405). This procedure may not be applicable to materials reacting with the leachant, leading for example to excessive gas emission or an excessive heat release. This document has been developed to determine the release of mainly inorganic constituents from wastes. It does not take into account the particular characteristics of organic constituents nor the consequences of microbiological processes in organic degradable wastes.

PD CEN/TS 15864:2015 Referenced Document

• ANSI/ANS 16.1-2003 Measurement of the Leachability of Solidified Low-Level Radioactive Wastes by a Short-Term Test Procedure
• CEN/TS 16660 Characterization of waste - Leaching behaviour test - Determination of the reducing character and the reducing capacity*， 2022-12-02 Update
• 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 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 15863:2015 Characterization of waste - Leaching behaviour test for basic characterization - Dynamic monolithic leaching test with periodic leachant renewal@ under fixed conditions
• EN 16192:2011 Characterization of waste - Analysis of eluates*， 2024-04-20 Update

PD CEN/TS 15864:2015 history

• 2015 PD CEN/TS 15864:2015 Characterization of waste. Leaching behaviour test for basic characterization. Dynamic monolithic leaching test with continuous leachant renewal under conditions relevant for specified scenario(s)
• 2012 PD CEN/TS 15864:2012 Characterisation of waste - Leaching behaviour test for basic characterisation - Dynamic Monolithic Leaching Test with continuous leachant renewal under conditions relevant for specified scenario(s)