CEN ISO/TS 21268-4:2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Principle
6 Apparatus
7 Reagents
8 Sample pretreatment
9 Procedure
10 Eluate treatment, storage and analysis
11 Analytical determination
12 Blank test
13 Calculation
14 Test report
15 Performance characteristics
Annex A (informative) - Example of a specific liquid-solid
                        separation procedure for soil sample
Annex B (informative) - Operation and uses of the test:
                        influence of pH on the leaching behaviour
Annex C (informative) - Preliminary determination of the acid/base
                        consumption
Bibliography

ISO/TS 21268-4:2007 specifies a test method to obtain information on the short- and long-term leaching behaviour and characteristic properties of materials. It applies to the determination of the influence of pH on the leachability of inorganic and organic constituents from soil and soil material, and the ecotoxicological effects of eluates with respect to microorganisms, fauna and flora. The test is not suitable for constituents that are volatile under ambient conditions. The test procedure specified in ISO/TS 21268-4:2007 produces eluates that are subsequently characterized by physical, chemical and ecotoxicological standard methods.