The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
cation exchange capacity
The ability of a solid substance (especially clay minerals) to adsorb cations. The cation exchange capacity of a material represents the total negative charge on the surface of the material and is generally expressed in milliequivalents per 100 g of material (compare with anion exchange capacity).
The term "cation exchange capacity" was found in the following pages: