Pigments Checker FREE loan

CHSOS is calling for Laboratories and Research Groups interested to collaborate and contribute to the Free and Downloadable spectral database of pigments in Pigments Checker.

We already provided Reflectance spectra which can be accessed and downloaded from the interactive table.

Reflectance spectroscopy

DOWNLOAD Database: A. Cosentino “FORS spec­tral data­base of his­tor­i­cal pig­ments in dif­fer­ent binders” e-conservation Jour­nal 2, 57–68, 2014.


We are looking for interested partners to increase this database including other spectroscopic and imaging methods, such as Raman, XRF, FTIR, XRD. Collaborate with CHSOS and propose your ideas.

Contact CHSOS at antoninocose@gmail.com

  • We will send Pigments Checker  to your laboratory for the time you need  to do the tests.
  • Data will be open access. They will be published (as spectral data) on CHSOS website.
  • You are free to use the data for publications and on your website.
  • We will cite your laboratory on CHSOS website and any other publication using your data.

Pigments Checker is our Research Project. We want to provide professionals in the art conservation sector with a practical tool to test their equipment and develop new methodologies for pigments identification.

pigments checker v2 vsPigments Checker is for photographers, conservators and scientists interested in technical documentation of paintingss. It has 54 swatches of historical pigments designed for infrared photography, ultraviolet photography and other technical photographic methods for art examination. Check it out!

Pigments Checker is a collection of 54 swatches of his­tor­i­cal pig­ments that have been applied using gum ara­bic as a binder on a cel­lu­lose and cot­ton water­color paper, acids and lignin free. This paper is not treated with opti­cal bright­en­ers, it’s slightly UV flu­o­res­cent, and it reflects IR. Two cross-hair lines, 0,2 mm (ver­ti­cal) and 0.4 mm (hor­i­zon­tal) are printed on each swatch of paper before the appli­ca­tion of paint, in order to have a means to eval­u­ate the pig­ments’ trans­parency in the IR and IRR imag­ing. Among all the pig­ments and their vari­eties ever used in art these pig­ments col­lec­tion select the most used ones from antiquity to early 1950’.

Purchasing our Pigments Checker  you  sustain CHSOS and its mission to disseminate innovative, affordable and sustainable methods for scientific examination and documentation of works of art and archaeology.


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