Supplementary comparison on primary realisations of gloss scales
Project Description
The specular gloss of a set of four artefacts will be measured at three measurements geometries: 20°, 60°, and 85° using collimated beam geometry, according to the ISO 2813:2014 [2].
The artefacts will have three levels of specular gloss; low gloss, medium gloss, and high gloss. They will be 100 mm x 100 mm black glass standards, with nominal values of 95 GU at 60°, 69 GU at 20°, 40 GU at 60°, and 27 GU at 85°.