Innovative strategies for the preventive conservation of metallic objects in museum collections
Keywords:
colecciones metálicas, corrosión, evaluación de ambientes, ciencia ciudadana, conservación preventivaAbstract
The problems for the conservation of metal collections comes in many cases from pollutants emitted by materials of showcases, display or storage rooms where they are exposed or preserved. Apart from the materials of the display case itself, in some types of collections incompatible materials can be co-existing and sometimes even in the same object. In recent years, some systems have been developed to measure the corrosivity of indoor museum environments, but they are very expensive.
As an alternative to these systems, a comprehensive approach to the problems of corrosion of metals in museum interiors is being carried out through several research projects, in order to establish an effective and sustainable strategy for their conservation. To this end, the aim is to quantify and classify the corrosivity in rooms and showcases of museums such as MAN or MUNCYT, as well as to evaluate the corrosivity of the non-metallic components from the objects and/or the exhibition, based on standards such as UNE ISO 11844:2020 and the Oddy test. As an innovative methodology for assessing deterioration, a system is proposed for monitoring the environmental impact on metal collections based on the changes in colour associated with corrosion, using image analysis and actively involving visitors.
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References
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