Abstract

The material analysis undertaken within this research was only at
a minimum level. No positive
pigment identification was under
taken. Where pigment names are given these are based
upon visual identification only. If further clarification of these schemes is required, these pigments should be subjected to
further material analysis.

The cross-sectional samples were viewed under both simulated daylight and ultraviolet illumination. This allowed the stratigra
phy of the samples to be fully understood and provided an
insight into the first appearance of schemes containing zinc compounds, which assisted with the dating of the layers.

Ultraviolet fluorescence was undertaken using an excitation filter of BP 340 – 380 nm wavelength. (Identification of metal drie
rs and extenders within paint media)

Chemical spot testing was undertaken using Sodium sulphide (Na2S · 9H2O) at 15% solution in distilled water. This chemical test identifies the presence of lead compounds within
oilpaint films.