National Portrait Gallery (U.S.). Conservation Laboratory.

The Gallery's Conservation Laboratory is responsible for the treatment of works in the museum's collection. Conservators specialize in painting, paper, and three-dimensional object conservation. The conservation lab also monitors hydrothermographs that measure temperature and humidity in the galleries, as well as other tools that measure visual spectrum and ultraviolet light.

The Laboratory was established in 1967. Staff have included Charles H. Olin, Conservator, 1967-1971; Felrath Hines, Conservator and Senior Conservator, 1972-1980; Rosamund Westmoreland, Senior Conservator, 1981-1983; and Cindy Lou M. Ockershausen, Conservator and Senior Conservator, 1984-present.

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