(Received 5 November 1979; accepted 21 January 1980)
Published Online: July
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Repeated controlled tests have shown that impressions from laboratory gloves will print onto optical components in 20 to 40 min and, in some cases, sooner. Careful testing demonstrated that palmar sweat passed through the glove material; the problem was not that gloves conform to the friction ridges of the fingers and then transfer some contaminant. The problem can be alleviated to a great extent by wearing thin cotton gloves like those commonly used in the film industry.
Research physicist, University of Dayton Research Institute, Kirtland Air Force Base, N. Mex
Stock #: JFS11275J