The complexity of objects often means that similar objects react very differently to the environment.
For some object types it is now possible to analyse an individual object and determine if it will be stable under certain temperature and RH conditions or what conditions it requires. A number of methods have been developed through the GoGreen project.
Detailed methodologies are available at http://zenodo-rdm.web.cern.ch/records/17739372.
This workshop will give participants the practical skills to undertake and interpret these analyses.
The methods covered will be:
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Oxygen depletion measurement for metallic objects, especially useful for archaeological iron and copper alloy objects. This uses Presens oxygen meters.
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Analysis of stone with non-invasive FTIR to determine swelling clay content. This uses Bruker Alpha or Agilent 1400 FTIRs.
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Analysis of soluble salts in stone and ceramics using poulticing and ion chromatography or SEM-EDX. Determination of climate (T and RH) stability regions through ECOS modelling.
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Analysis of soluble sodium and potassium on glass surfaces to determine degradation rate. Uses ion chromatography, SEM-EDX or colorimetric spot tests.
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Shrinkage temperature (Ts) analysis using Micro Hot Table (MHT) method of historical parchment and leather samples as described in the IDAP (Improved Damage Assessment of Parchment) project and recommended environmental conditions depending on their state of preservation for their display and storage.
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Computational exercise on collected Atomic Force Microscopy images of parchment to determine extent of collagen denaturation and D banding of parchment samples
Participants should bring their own laptop for the ECOS calculations.
The workshop will take place at Birkbeck College, London, on 7th September, 10-5pm.
Due to the practical nature, places are limited and will be allocated by order of registration. There is no cost to participate, but lunch will not be provided.
For further details and to register contact Cathryn Harvey, [email protected].