Conservation Science

286 Chapter 11 Figure 13An SEM of class III condition of waterlogged archaeological oak. Note the well-preserved cell wall layer ...

Conservation of Ancient Timbers from the Sea 287 probably worth aiming for a storage period of less than 12 months. This is not ...

288 Chapter 11 after extensive examination of a large random timber sample, indicating that fungal attack of stored polyethylene ...

surface. The presence of flight holes or small piles of frass (insect droppings) was often the only visible indication that the ...

290 Chapter 11 successfully used irradiation to sterilise archival and manuscript papers. Decreases in mechanical strength of ce ...

Conservation of Ancient Timbers from the Sea 291 Advice to Conservators. Gamma irradiation, is suitable for the passive treatmen ...

292 Chapter 11 light are often used for the storage of smaller items. The advantage of this type of container is that it can be ...

solution. Finally, water storage of archaeological wood should not exceed a period of 3–5 years. 3.6 The Storage of the Mary Ros ...

294 Chapter 11 timbers was found to be between 20 and 30°C. This supported the view that suppression of microbial activity could ...

ideal burial environment to minimise decay. Unfortunately, when shipwrecks are reburied there is little or no subsequent monitor ...

296 Chapter 11 4 Conservation of Archaeological Wood The appearance of waterlogged archaeological wood can be highly deceptive, ...

Conservation of Ancient Timbers from the Sea 297 to the principle of minimum intervention, and the best conservation method is o ...

298 Chapter 11 guesswork, but more recently conservators have experimented by nuclear magnetic imaging to help solve these probl ...

Conservation of Ancient Timbers from the Sea 299 5 Conservation Methods The following discussion deals with different conservati ...

As a consequence, the presence of high concentrations of iron sulfides in dry conserved archaeological wood results in structura ...

Conservation of Ancient Timbers from the Sea 301 compounds, which can be treated differently: particles of iron(II) sulfide pre- ...

diversity of bacteria identified comprised sequences representing bacterial groups capable of sulfur oxidation (Thiobacillus pro ...

borax is a well-known detergent, as well as a biocide, and scientists have found that it increases the solubility of elemental s ...

304 Chapter 11 Figure 19Spraying the hull timbers with a solution of PEG use of PEG, four methods of application can be consider ...

Conservation of Ancient Timbers from the Sea 305 being sprayed with an aqueous solution of PEG 200). The starting concentra- tio ...