Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. functional concepts (general)

Anotations

Scope note:

Deterioration caused by agents present in a material itself. This may be the a result of short-lived, temporary, or impermanent materials, or the structural nature of a material. This fault or defect may lead to natural deterioration or make an object more susceptible to external agents of deterioration.