EN 12920:2006/prA1

Characterization of waste - Methodology for the Determination of the Leaching Behaviour of Waste under Specified Conditions

Charakterisierung von Abfall - Vorgehensweise zur Bestimmung des Auslaugungsverhaltens von Abfall unter festgelegten Bedingungen

Der erste Absatz ist durch den nachstehenden zu ersetzen:
"Diese Europäische Norm legt eine Vorgehensweise zur Bestimmung des Auslaugungsverhaltens eines Abfalls oder eines Abfalls aus der mineralgewinnenden Industrie unter festgelegten Bedingungen (d. h. für ein festgelegtes Szenarium einschließlich einer festgelegten Zeit) fest, um eine Lösung für ein genau beschriebenes Problem zu geben. Dies gilt für Beseitigungs- und Verwertungsszenarien.".
ANMERKUNG 2 ist wie folgt zu ergänzen:
"oder die Voraussage eines Säurebildungsverhaltens von Abfall aus der mineralgewinnenden Industrie ".

Caractérisation des déchets - Méthodologie pour la détermination du comportement à la lixiviation d'un déchet dans des conditions spécifiées

Ajouter en NOTE 1 :
« le terme « déchets » comprend toutes les catégories de déchets, tels que les déchets municipaux, les déchets issus de l’industrie extractive, etc. »
Ajouter à la fin de NOTE 2 :
« ou les prévisions du comportement de production acide des déchets issus de l’industrie extractive. ».

Karakterizacija odpadkov - Metodologija za določanje izlužljivosti odpadkov pri določenih pogojih - Dopolnilo A1

General Information

• Status: Not Published
• ICS: 13.030.01 - Wastes in general
• Technical Committee: CEN/TC 292 - Characterization of waste
• Drafting Committee: CEN/TC 292/WG 6 - Basic characterization tests for leaching behviour
• Current Stage: 5060 - Closure of Vote - Formal Approval
• Start Date: 28-Jun-2008
• Due Date: 26-Dec-2008
• Completion Date: 28-Jun-2008
• Ref Project: SIST EN 12920:2006/kprA1:2008 - Characterization of waste - Methodology for the Determination of the Leaching Behaviour of Waste under Specified Conditions

Relations

• Merged Into: EN 12920:2006+A1:2008 - Characterization of waste - Methodology for the determination of the leaching behaviour of waste under specified conditions
• Effective Date: 19-Jan-2023
• Amends: EN 12920:2006 - Characterization of waste - Methodology for the Determination of the Leaching Behaviour of Waste under Specified Conditions
• Effective Date: 22-Dec-2008

Overview

EN 12920:2006/prA1 is a European Standard developed by the Technical Committee CEN/TC 292 focused on the characterization of waste. This amendment updates the original EN 12920:2006 by refining the methodology for determining the leaching behaviour of waste under specified conditions, including waste from the extractive industry. The standard addresses the assessment of how waste materials release contaminants when exposed to environmental factors such as water infiltration over defined time frames and scenarios.

This methodology supports the reliable evaluation of leaching patterns to inform waste disposal, recovery, and environmental risk management strategies. It is designed to provide a systematic framework for characterizing waste properties, predicting acid generation, and understanding the impact of various physical, chemical, mechanical, and biological influences on leaching behaviour.

Key Topics

• Leaching Behaviour Determination
  Specifies a detailed methodology to evaluate the release of substances from waste under controlled, scenario-based conditions to predict potential environmental impacts.

• Acid Generation Behaviour
  Introduces the concept of acid generation behaviour, especially relevant to wastes originating from mining and extractive industries. This includes acid rock drainage (ARD) and acid mine drainage (AMD), defined as the release of low pH drainage due to sulfide and elemental sulfur oxidation.

• Scenario and Problem Definition
  Encourages clear definition of the waste management problem, relevant scenarios including disposal and recovery options, and anticipated waste characteristics (especially relevant for extractive industry waste).

• Influence of Parameters
  Identifies a broad range of parameters affecting leaching behaviour including:

  • Chemical factors (pH, redox potential, dissolved organic matter)
  • Physical factors (temperature sensitivity, particle size, moisture absorption)
  • Mechanical and geotechnical factors (permeability, compaction effects)
  • Biological factors (biodegradation, sulphide oxidation)

• Stepwise Approach
  Details a logical sequence for conducting characterization, from problem definition through waste description, scenario assessment, influence parameter determination, testing, and concluding recommendations.

Applications

• Waste Management Planning
  Supports effective design of waste disposal and recovery operations by predicting contaminant leaching and acid generation, especially critical for mining waste.

• Environmental Risk Assessment
  Provides methodologies essential for evaluating potential soil and groundwater contamination risks posed by landfill or excavation activities.

• Regulatory Compliance
  Assists waste producers, environmental consultants, and regulatory bodies in meeting national and European legislation on waste characterization and management.

• Mine Waste Assessment
  Specialized amendments address mining waste streams, enabling meaningful prediction of acid rock drainage and facilitating closure and rehabilitation planning for extractive sites.

• Research and Development
  Establishes standardized test procedures for scientific studies on waste leaching dynamics under various climatic and geochemical conditions.

Related Standards

• EN 12457 series - Characterization of waste leaching behaviour using batch tests
• EN 15863 - Characterization of waste - Performance testing for leaching–column test method
• ISO 21268 - Leaching procedures for waste and soils
• CEN/TC 292 standards - Waste characterization and testing methodologies
• National environmental and mining waste regulations which reference EN 12920 methodologies for compliance and assessment.

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Keywords: EN 12920:2006/prA1, waste characterization, leaching behaviour, acid generation behaviour, acid rock drainage, extractive industry waste, environmental risk assessment, waste disposal, waste recovery, CEN standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2008
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Characterization of waste - Methodology for the Determination of the Leaching Behaviour
of Waste under Specified Conditions
Charakterisierung von Abfall - Vorgehensweise zur Bestimmung des
Auslaugungsverhaltens von Abfall unter festgelegten Bedingungen
Caractérisation des déchets - Méthodologie pour la détermination du comportement à la
lixiviation d'un déchet dans des conditions spécifiées
Ta slovenski standard je istoveten z: EN 12920:2006/prA1
ICS:
13.030.01
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
EN 12920:2006
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
February 2008
ICS 13.030.01
English Version
Characterization of waste - Methodology for the Determination of
the Leaching Behaviour of Waste under Specified Conditions
Caractérisation des déchets - Méthodologie pour la Charakterisierung von Abfall - Vorgehensweise zur
détermination du comportement à la lixiviation d'un déchet Bestimmung des Auslaugungsverhaltens von Abfall unter
dans des conditions spécifiées festgelegten Bedingungen
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 292.
This draft amendment A1, if approved, will modify the European Standard EN 12920:2006. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment was established by CEN in three official versions (English, French, German). A version in any other language made
by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12920:2006/prA1:2008: E
worldwide for CEN national Members.

Foreword
This document (EN 12920:2006/prA1) has been prepared by Technical Committee CEN/TC 292
“Characterization of waste”, the secretariat of which is held by NEN.
This document is currently submitted to the Unique Acceptance Procedure.
The object of this amendment to EN 12920:2006 is to indicate additions and modifications to this
European Standard relating to aspects related to the methodology for wastes from the extractive
industry. In this amendment changes have been made that are equally relevant for waste in
general.
1 Modification to Clause 1, Scope
Replace the first paragraph with:
"This European Standard specifies a methodology for the determination of the leaching behaviour
of a waste or a waste from the extractive industry under specified conditions (i.e. for a specified
scenario including a specified time frame) in order to provide a solution to a defined problem. This
applies to disposal and recovery scenarios.".
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