UNI EN 12920 : 2009

Foreword
Introduction
1 Scope
2 Terms and definitions
3 Description of the steps in the methodology
  3.1 Outline
  3.2 Step 1: Definition of the problem and the
      solution sought
  3.3 Step 2: Description of the scenario
  3.4 Step 3: Description of the waste
  3.5 Step 4: Determination of the influence of
      parameters on leaching behaviour within the
      specified time frame
  3.6 Step 5: Modelling of leaching behaviour within
      the specified time frame
  3.7 Step 6: Behavioural Model Validation
      3.7.1 General
      3.7.2 Verification of the consistency between
            parameter specific tests and simulation tests
      3.7.3 Verification of predicted behaviour in the
            field
      3.7.4 Identification of analogy with geological
            natural and/or ancient materials
  3.8 Step 7: Conclusion
4 Study report
Annex A (informative) - Principle of the methodology
Bibliography

Describes a methodology for the determination of the leaching behaviour of waste under specified conditions (i.e. for a specified scenario including a specified time frame) in order to provide a solution to a defined problem. Applicable to disposal and recovery scenarios.