National Museum of Denmark

Costa V, Dubus M (2007) Impact of the environmental conditions on the conservation of metal artifacts an evaluation using electrochemical techniques, Museum Microclimates,Padfield T (Ed), The National Museum of Denmark 63-65. 

Schieweck, A., Markewitz, D. and Salthammer, T. (2007b) Screening emission analysis of construction materials and evaluation of airborne pollutants in newly constructed display cases, in Museum Microclimates, Contributions to the Conference in Copenhagen 19-23 November 2007 (eds T. Padfield and K. Borchersen), The National Museum of Denmark, Copenhagen, Denmark, pp. 67-72. 

Christensen, B. B., "The Conservation of Waterlogged Wood in the National Museum of Denmark", National Museum of Denmark Copenhagen (1970). 

Hald, M. (1980). Ancient Danish Textiles from Bogs and Burials A Comparative Study of Costume and Iron Age Textiles. Copenhagen National Museum of Denmark. 

Department of Conservation, National Museum of Denmark, PO Box 260 Brede, DK-2800 Kongens Lyngby, Denmark... 

A survey of plastics-containing objects in the British Museum and the National Museum of Denmark showed that 1% of objects were actively deteriorating and were in immediate need of conservation, while 12% exhibited deterioration and required cleaning, stabilising and repair. All the acute objects contained cellulose nitrate, cellulose acetate, plasticised PVC or polyurethane foam. Most objects (60%) were defined as being of low conservation priority, that is, they were in a stable condition but needed some treatment such as cleaning. Only just over one quarter required no conservation treatment. In general, deterioration of plastic objects in museums is visible within 5-25 years of collection. 

Museum Conservation of Wet Archaeological Wood. In 1951 the conservator at the National Museum of Denmark, Borje Brorson Christensen, published an article (2) about preservation of wooden objects found in peat bogs, in which he described the methods used to preserve that kind of material. By that time the drawbacks of the alum method, especially when glycerin was added, had began to show, and Christensen was working to find a suitable replacement for it. As PEG was not mentioned in his article. 

All the unstable objects identified in surveys at the V A Museum and British Museum contain cellulose nitrate, cellulose acetate, plasticized poly (vinyl chloride) (PVC) or polyuretliane foams. The particular instability of these four plastics has also been recognized in surveys of other large collections including ones at the National Museum of Denmark and the National Museum of... 

Figures 2.1, 2.4, 2.6 and 2.7 Photographs by John Lee National Museum of Denmark...

Figures 4.4, 4.5, 4.9 Photographs by Roberto Fortuna National Museum of Denmark Chapter 5...

All photographs by Roberto Fortuna National Museum of Denmark... 

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