Preservation Framework Online
Incorrect Temperature - Agents of Deterioration
Too high:- causes gradual disintegration or discolouration of organic materials, especially if they are chemically unstable (e.g., acidic paper, colour photographs, nitrate and acetate films). NOTE: Most materials decompose gradually at room temperature, but the time scale for complete destruction is in millennia.
- causes embrittlement, which results in fractures of paints and of other polymers.
- cause fractures and delamination in brittle, solid materials, especially if they are layered. cause RH fluctuations (see "Incorrect Relative Humidity").
 | Avoid | | Block | | Detect | | Respond |
| Recover/Treat |
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