Abstract
Comparative atmospheric corrosion data for different metal alloys can be used to predict the service life of a component, maintenance requirements, and metal loss to the environment. In some international projects some prediction models have been derived for the atmospheric corrosion rate of metals – dose/response functions (EN ISO 9224, ECE UN ICP program, Multi‐Assess project) – including copper alloys.In this paper, actual corrosion studies of two long‐term exposed objects – a bronze statue of John of Nepomuk from Charles Bridge and the copper roof of Queen Ann's Summer Palace, are presented. Both these objects are exposed to Prague's urban atmosphere for more than 300 years. The predicted and measured corrosion rates are compared for these cultural objects. During their exposure the corrosion rates changed as the result of changing corrosivity of atmosphere in the Prague centre.
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