HunterLab systems measure the reflected and transmitted color, whiteness, yellowness and haze of plastic products. They give numerical values that correlate to what you see and are ideal for measuring raw materials through finished product. Samples measured include resins, solvents, color concentrates, pellets, plaques, films, molded, extruded and blown products, as well as preforms. Portable, bench and on-line systems are available.
http://www.hunterlab.com/Industry/Plastic
This video shows the measurement of a plastic product to determine color characteristics that correlate to product quality.
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