• Side by side comparison. (Left) a chart. (Right) Closeup of a uniform belt.
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    FTIR spectrum of the buckle (left) showing the cellulose acetate composition of the plastic. Detail of the belt’s buckle (right). Collected with Agilent 4100 ExoScan FTIR spectrophotometer with diamond ATR single-bounce cell and viewed with MicroLab PC.

  • Side by side comparison. (Left) a chart. (Right) Closeup of a uniform belt.

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Smithsonian's National Air and Space Museum

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