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Subject: Polymer Color Analysis

Date: 04/23/01 at 3:16 PM
Posted by: Glenn T. Visscher
E-mail: glenn.t.visscher@saint-gobain.com
Message Posted:

I have been carrying out a color analysis of a fluoropolymer film recently and have results that I would appreciate some clarification on. Using a BYK Gardner Color Analyzer (Hand held) and a white background, we generate a set of Lab numbers. Using a UV/Visible Spectrometer (Perkin elmer), on the same sample - same testing spots, we generated Lab numbers which were MUCH lower. The BYK Gardner unit was a reflective unit, while the UV/Vis unit was a transmission.

Can anyone explain why the numbers would be so different with the two different techniques?

Any information would be GREATLY appreciated!

Thank you.


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