inch mm millimetre O 2 oxygen gas OH - hydroxide ion Understanding metals and corrosionĪ variety of metals, metal alloys and metal finishes can be found in museum collections.
List of abbreviations and symbols Abbreviations CCI Canadian Conservation Institute HVAC heating, ventilation and air conditioning LDPE low-density polyethylene MDF medium-density fibreboard MERV minimum efficiency reporting value NGC National Gallery of Canada PDF portable document format PET poly(ethylene terephthalate) ppb part per billion RH relative humidity UV ultraviolet VOC volatile organic compound Symbols cm centimetre e - electron Fe iron Fe 2+ ferrous ion H 2O water in.
Dust, fingerprints, salts, fatty acids, polish residues.Causes of metal corrosion and preventive conservation strategies.Copper and copper alloys (bronze and brass).Recognizing types of corrosion on common metals.Stable surfaces versus active corrosion.
This section presents key aspects of managing the care of metal objects in heritage collections based on the principles of preventive conservation and risk management. Barclay, Carole Dignard and Lyndsie SelwynĬaring for metal objects is part of CCI's Preventive conservation guidelines for collections online resource.