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# Explosive Hot Pad

An infrared image shows temperature variations as a round swipe cloth is heated to vaporize any explosive particles that may be present. Black/deep purple areas are about 40 degrees C, while yellow/white areas are about 200 degrees C. NIST chemists are developing standards and calibration services to help optimize equipment used at airports and other venues for detecting explosive materials.

*CSTL

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March 13, 2007

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