jane louise
Dag9
Left: Image in normal illumination. Circle denotes an area of corrosion area that has significantly advanced during the exhibition monitoring period of one year.
Right: Image taken with short wave Ultra-Violet lighting (UVC). Note location of green fluorescence. Analysis of the fluorescing material indicates a copper cyanide complex (identified in earlier research), probably from the historic plating chemistry. These are reactive sites that corrode and cause irreversible image deterioration in high relative humidity conditions.
Dag9
Left: Image in normal illumination. Circle denotes an area of corrosion area that has significantly advanced during the exhibition monitoring period of one year.
Right: Image taken with short wave Ultra-Violet lighting (UVC). Note location of green fluorescence. Analysis of the fluorescing material indicates a copper cyanide complex (identified in earlier research), probably from the historic plating chemistry. These are reactive sites that corrode and cause irreversible image deterioration in high relative humidity conditions.