EN 12457-4:2002

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
  3.1 Leaching test
  3.2 Leachant
  3.3 Eluate
  3.4 Single batch leaching test
  3.5 Serial batch leaching test
  3.6 Liquid to solid ratio L/S (abbreviation: L/S)
  3.7 Liquid waste
  3.8 Sludge
  3.9 Monolithic waste
  3.10 Granular waste
  3.11 Dry matter content ratio (abbreviation: DR)
  3.12 Moisture content ratio (abbreviation MC)
  3.13 Laboratory sample
  3.14 Test sample
  3.15 Test portion
4 Compliance test
  4.1 Principle
  4.2 Equipment and reagents
  4.3 Sampling strategy and sample preparation
5 Procedure
  5.1 Testing conditions
  5.2 Description of the procedure
  5.3 Further preparation of the eluate for analysis
  5.4 Blank test for the verification of the leaching
       procedure
6 Calculation
7 Documentation and test report
  7.1 Sample preparation
  7.2 Production of eluate
  7.3 Analytical determination
  7.4 Calculations and blank test information
8 Performance characteristics
  8.1 Objective of the validation
  8.2 Validation study
  8.3 Validation results
  8.4 Summary of the performance characteristics evaluation
Annex A (informative) Information on the influence on the
         test results of the parameters that effect leaching
Annex B (informative) Test for determining whether waste is
         in the liquid state
Annex C (informative) Example of datasheet for EN 12457-4
Annex D (informative) Process map for EN 12457-4
Annex E (informative) Example of a specific liquid-solid
         separation procedure for soil sample
Annex ZA (informative) National deviation A from France
Bibliography

This part of the European Standard specifies a compliance test providing information on leaching of granular wastes and sludges under the experimental conditions specified hereafter, and particularly a liquid to solid ratio of 10 l/kg dry matter. It applies to waste which has a particle size below 10 mm without or with limited size reduction. Note: In some cases, it could be useful to test the material with coarser particles up to 40 mm in diameter: This requires a larger amount for material and liquid.