Color Analysis: Hunter Lab, CIE Lab, ASTM D6290, ASTM E1347, ASTM E308
Hunter Lab and XYZ are standard three dimensional color spaces that allows a precise definition of the color of a test sample. Color analysis can be used to match adjacent parts molded from different materials, or to evaluate color change due to outdoor exposure. Visual color and spectrophotometer readings can also be affected by surface texture, molding parameters, processing method, and viewing light sources.
The BYK Gardner Spectrophotometer is highly automated. After specifying the illuminant, observer angle, and the reference color, the test sample is inserted into the specimen holder and the spectrophotometer takes the reading.
Typically a 50 mm (2") or 100 mm (4") disk
*Please note that this test description is intentionally generic in nature and aimed at providing a descriptive summary to enhance test understanding. Due to copyright restrictions, we are not able to provide copies of standards. Standards can be obtained from appropriate standards authorities.
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