Collections are predominantly made of organic materials, such as paper, animal skins, textiles, wood, and certain animal and vegetable-based coatings and adhesives. Attack by mould, bacteria, insects and even mammals is inevitable for material that is neglected, exposed to a poor environment or stored in unsuitable conditions. Mould causes irreversible physical and chemical damage to collections and presents a significant health hazard.
This booklet from the British Library Preservation Advisory Centre offers outlines environmental control and storage factors that should be considered in order to prevent mould outbreaks as well as how to deal with outbreaks should they occur in your collections.
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