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  • BS EN 15863:2015 (published 2015-04)

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    Characterization of waste. Leaching behaviour test for basic characterization. Dynamic monolithic leaching test with periodic leachant renewal, under fixed conditions

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  30-04-2015

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle
    5 Reagents
    6 Equipment
    7 Sample preparation
    8 Procedure
    9 Calculations
    10 Performance characteristics
    11 Documentation and test report
    Annex A (informative) - Identification of release mechanisms and use
            of test results
    Annex B (informative) - Assessment of release mechanisms (if required)
    Annex C (informative) - Examples of data about the L/A ratio
    Annex D (informative) - Process map for EN 15863
    Annex E (informative) - Repeatability and reproducibility data
    Bibliography

    Abstract - (Show below) - (Hide below)

    Pertains for determining the leaching behaviour of monolithic wastes under dynamic conditions.

    Scope - (Show below) - (Hide below)

    This European Standard is applicable for determining the leaching behaviour of monolithic wastes under dynamic conditions. The test is performed under fixed experimental conditions in this document. 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).

    This dynamic monolithic leaching test (DMLT) is a parameter specific test as specified in EN12920 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 EN12920 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 40mm 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.

    Within the reproducibility ranges, the leaching results obtained with EN15863 are expected to be equivalent to those obtained with CEN/TS16637-2 (DMLT for construction products), because the main testing conditions are equalized in both standards. As shown in the results obtained with EN15863 (see AnnexE), they are also demonstrated to be comparable with US EPA method 1315 (SW846). These observations imply that a monolithic waste tested with this European Standard, does not need to be tested a second time, when the material proves suitable for beneficial use in construction and provided it has not undergone a treatment or other changes modifying its leaching behaviour.

    NOTE1

    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.

    NOTE2

    For monolithic waste materials with a saturated hydraulic conductivity higher than 10 8 m/s water is likely to percolate through the monolith rather than flow around. In such cases relating the release to the geometric surface can lead to misinterpretation. A percolation test is more appropriate then (e.g. CEN/TS14405 ).

    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.

    General Product Information - (Show below) - (Hide below)

    Committee EH/4
    Development Note Supersedes BS PD CEN/TS 15863 & 13/30286655 DC. (04/2015)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 12457-2 : 2002 CHARACTERIZATION OF WASTE - LEACHING - COMPLIANCE TEST FOR LEACHING OF GRANULAR WASTE MATERIALS AND SLUDGES - ONE STAGE BATCH TEST AT A LIQUID TO SOLID RATIO OF 10 L/KG FOR MATERIALS WITH PARTICLE SIZE BELOW 4 MM (WITHOUT OR WITH SIZE REDUCTION)
    ANS 16.1 : 2003(R2008) MEASUREMENT OF THE LEACHABILITY OF SOLIDIFIED LOW-LEVEL RADIOACTIVE WASTES BY A SHORT-TERM TEST PROCEDURE
    CEN/TS 16637-2 : 2014 CONSTRUCTION PRODUCTS - ASSESSMENT OF RELEASE OF DANGEROUS SUBSTANCES - PART 2: HORIZONTAL DYNAMIC SURFACE LEACHING TEST
    ENV 12920 : 1997 CHARACTERIZATION OF WASTE - METHODOLOGY FOR THE DETERMINATION OF THE LEACHING BEHAVIOUR OF WASTE UNDER SPECIFIED CONDITIONS
    EN 14997 : 2015 CHARACTERIZATION OF WASTE - LEACHING BEHAVIOUR TEST - INFLUENCE OF PH ON LEACHING WITH CONTINUOUS PH CONTROL
    NEN 7345 : 1995 LEACHING CHARACTERISTICS OF SOLID EARTHY AND STONY BUILDING AND WASTE MATERIALS - LEACHING TESTS - DETERMINATION OF THE LEACHING OF INORGANIC COMPONENTS FROM BUILDINGS AND MONOLITIC WASTE MATERIALS WITH THE DIFFUSION TEST
    EN 12457-4 : 2002 CHARACTERIZATION OF WASTE - LEACHING - COMPLIANCE TEST FOR LEACHING OF GRANULAR WASTE MATERIALS AND SLUDGES - 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
    ISO 5667-3:2012 Water quality Sampling Part 3: Preservation and handling of water samples
    CEN/TS 15864:2015 CHARACTERISATION OF WASTE - LEACHING BEHAVIOUR TEST FOR BASIC CHARACTERIZATION - DYNAMIC MONOLITHIC LEACHING TEST WITH CONTINUOUS LEACHANT RENEWAL UNDER CONDITIONS RELEVANT FOR SPECIFIED SCENARIO(S)
    EN 12457-1 : 2002 CHARACTERIZATION OF WASTE - LEACHING - COMPLIANCE TEST FOR LEACHING OF GRANULAR WASTE MATERIALS AND SLUDGES - ONE STAGE BATCH TEST AT A LIQUID TO SOLID RATIO OF 2L/KG FOR MATERIALS WITH HIGH SOLID CONTENT AND WITH PARTICLE SIZE BELOW 4 MM (WITHOUT OR WITH SIZE REDUCTION)
    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 16192 : 2011 CHARACTERIZATION OF WASTE - ANALYSIS OF ELUATES
    EN ISO 5667-3:2012 WATER QUALITY - SAMPLING - PART 3: PRESERVATION AND HANDLING OF WATER SAMPLES (ISO 5667-3:2012)
    ISO 3696:1987 Water for analytical laboratory use Specification and test methods
    EN 12920:2006+A1:2008 CHARACTERIZATION OF WASTE - METHODOLOGY FOR THE DETERMINATION OF THE LEACHING BEHAVIOUR OF WASTE UNDER SPECIFIED CONDITIONS
    EN ISO 3696 : 1995 WATER FOR ANALYTICAL LABORATORY USE - SPECIFICATION AND TEST METHODS (ISO 3696:1987)
    EN 15002:2015 CHARACTERIZATION OF WASTE - PREPARATION OF TEST PORTIONS FROM THE LABORATORY SAMPLE
    EN 12457-3 : 2002 CHARACTERIZATION OF WASTE - LEACHING - COMPLIANCE TEST FOR LEACHING OF GRANULAR WASTE MATERIALS AND SLUDGES - 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 MM (WITHOUT OR WITH SIZE REDUCTION)
    CEN/TS 14405 : 2004 CHARACTERIZATION OF WASTE - LEACHING BEHAVIOUR TESTS - UP-FLOW PERCOLATION TEST (UNDER SPECIFIED CONDITIONS)
    CEN/TS 15862 : 2012 CHARACTERISATION OF WASTE - COMPLIANCE LEACHING TEST - ONE STAGE BATCH LEACHING TEST FOR MONOLITHS AT FIXED LIQUID TO SURFACE AREA RATIO (L/A) FOR TEST PORTIONS WITH FIXED MINIMUM DIMENSIONS
    EN 14899 : 2005 CHARACTERIZATION OF WASTE - SAMPLING OF WASTE MATERIALS - FRAMEWORK FOR THE PREPARATION AND APPLICATION OF A SAMPLING PLAN
    EN 14429 : 2015 CHARACTERIZATION OF WASTE - LEACHING BEHAVIOUR TEST - INFLUENCE OF PH ON LEACHING WITH INITIAL ACID/BASE ADDITION
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