Preventive conservation refers to precautions taken to avoid or minimise future damage or loss. Potential dangers are recognised in good time and preventative measures are taken. The environmental conditions of a collection are continuously optimised. The aim is to handle the collection items with particular care, slowing down the natural ageing of the materials.
For the professional storage of museum objects in terms of preventive conservation, the environmental conditions need to be checked and regulated:
- The structural condition and equipment of the exhibition centres and depot buildings must provide a suitable and safe environment for the collection items
- Temperature and relative humidity (RH) are regulated. A stable indoor climate is essential to slow down the ageing process. Air that is too dry or too humid can lead to irreparable damage.
- The ambient air is filtered to protect the collection items from dirt and pollutants.
- The lighting of the objects is reduced to prevent damage caused by exposure to light. Colour changes, fading and accelerated ageing due to light are damage that can no longer be repaired.
- Damage caused by water, fire, theft and vandalism is minimised by security measures and regulated by emergency plans.
- Integrated Pest Management (IPM) measures ensure a regularly controlled and clean environment. The occurrence of biological pests such as moulds, insects and rodents is thus prevented as far as possible or detected at an early stage.
- The quality of packaging and exhibition materials is checked for suitability. Only materials that are resistant to ageing and do not cause damage are used, as they are sometimes in direct contact with the object for a very long time.
- Transport, handling and exhibition presentation of artworks must be organised as gently as possible. Art handling specialists use suitable materials and aids and coordinate the logistics.