The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
In sequential leaching (extraction) procedures, chemical extractants of various types are applied to the solid sample, e.g. soil, plants, airborne particles, sludge and wastes, each successive treatment being more drastic in chemical action than the previous one.
The term "sequential leaching" was found in the following pages: