Journal
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
Volume 70, Issue 4, Pages 445-451Publisher
SPRINGER
DOI: 10.1007/s00107-011-0571-x
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Funding
- European Economy Area Financial Mechanism through Iceland [PL0086]
- European Economy Area Financial Mechanism through Liechtenstein
- European Economy Area Financial Mechanism through Norway
- Polish Ministry of Science and Higher Education [N N105 278536, COST Action IE0601]
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The Guggenheim-Anderson-de Boer (GAB) three-parameter sorption equation has been used to interpret the adsorption and desorption isotherms of water vapour measured for 21 important cultural heritage wood species used in the past for panel paintings and woodcarving. The equation is capable of describing the full shape of the isotherms and yields meaningful physical parameters, especially the monolayer capacity from which the water accessible specific surface area can be obtained. It is demonstrated that average sorption isotherms can be derived using the GAB equation for the sorption data available for sets of specimens and that moisture properties of various wood specimens or chemically modified wood can be more easily compared.
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