Plastics Technology Laboratories  
 

Color Analysis
Hunter Lab; CIE Lab

ASTM D6290, E1347, E308

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Scope:
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.

Test Procedure:
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.

Specimen size:
Typically a 50 mm (2") or 100 mm (4") disk, although any flat sample that the specimen holder will grasp can be tested.

Data:
Hunter Lab
XYZ
CIE Lab


Equipment Used:
BYK Gardner Spectrophotometer


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**Please note that this test description is intentionally generic in nature and aimed at providing a descriptive summary to enhance test understanding. For more information please contact a Intertek PTL Technical Representative at . 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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