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. condition changing (processes)

Anotations

Scope note:

The process of becoming gelatinous. In conservation this may refer to a chemical deterioration of parchment and leather tanned with condensed vegetable tannins, where collagen turns into water-soluble gelatin. This occurs as a reaction to substantial fluctuations in temperature and moisture or when parchment and such materials are stored under acidic condition.