Carbon dating art
A copy of the late 20th century can easily be distinguished.Additionally, since the halt of nuclear testing in the atmosphere, which took place in the early 1960s, the diminution of the amount of C-14 has been very regular.
In the past, when called on to appraise and attribute a painting, art experts examined only the surface under natural light.
In detail: 1) with the spectroscopic dating of the wooden stretcher once proved its originality 2) with stereo microscopic analyses for the study of the painting layer: the drying of the paint binder, the craquelure, the sign left by the stretcher, etc.
3) with Woods Light and microscope for the examination of restored areas 4) with IR-Reflectography for the examination of the deepest painting layers 5) with microscope, Woods Light and reflectography in order to verify the material uniformity and the ageing of the signature 6) with IR-Spectroscopy for establishing the pigments used and examining the drying of the paint binder attempt to determine the authenticity of a painting must begin with tests and analyses to establish whether the age of the painting and the materials and techniques used are compatible with the presumed date of execution.
The measurement of the amount of C-14 present in a sample compared to its original content is what makes it possible to date wood.
Obviously, the test dates the age of the used wood and not an object’s date of manufacture.
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Certificates are issued with a clear and exhaustive report on the results of the analyses.