Contemporary conservation-restoration practice is affected by theoretical and ethical principles and by social factors. They are often discussed separately, but their effect on the processes of conservation-restoration is complex and intertwined.This paper offers an overview of the development of professional codes of ethics in conservation-restoration and as they relate to and inform professional competences. It looks at how ethics and competences are defined and link with professional education. It also discusses relationships with other professions in the preservation of cultural heritage and the need for clarification on the role and obligation of these respective professions. The legal and social issues they generate at a European level are touched upon.
For the first time, wall paintings of 20th century Russian artists in Bulgaria were analysed by means of complementary analytical methods. Representative samples collected from the Russian church St. Nicholas in Sofia, decorated by the famous Russian artists Vasily Perminov, Michail Maletski and Nikolay Shelehov during different periods of time, were examined by means of micro-Raman spectroscopy, attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy and X-Ray fluorescence (XRF). The results of the study reveal that colourful palette was achieved by using various pigment mixtures of traditional and modern synthetic pigment as titanium white, barium white, calcite, chrome green, green earth, hematite, ultramarine, madder lake, carbon black, vermilion, Naples yellow. The analysis of the paint binders allow to conclude that Maletski and Shelehov have used egg tempera as painting technique, while Perminov has worked in two painting techniques - oil and egg tempera.
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