Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. physicochemical processes

Anotations

Scope note:

The process by which a liquid, or a mixture of gases and liquids, is drawn into and tends to fill permeable pores in a porous solid material; usually accompanied by a physical change, chemical change, or both.