Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. built work divisions
7. rooms and spaces
8. [rooms and spaces by property]

Anotations

Scope note:

A chamber designed to create a vacuum environment by removal of air and gasses with a pump. In conservation science practice, vacuum chambers are used for such purposes as drying, degassing, fumigation, resin impregnation.