BYK Gardner micro-TRI-gloss Glossmeter
This instrument is used to measure the reflectivity or shininess of a surface. These data are useful in experiments examining surface appearance changes before and after treatments or weathering. In conservation, it is important to know whether surface coatings, cleaners or treatments will change the nature of the object’s appearance. We frequently use this instrument in conjunction with the colorimeter to characterize sample surfaces.
The instrument has three different angles of measurement, which make it possible to measure gloss of matte, semi-gloss, and high-gloss surfaces. The data are reported as gloss-units, and are measurements of the amount of light detected after it is bounced off the substrate’s surface. The instrument can take multiple measurements of a surface and report the average gloss and standard deviation.
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