Measuring Humidity in Sealed Glass Encasements

TBMG-587

06/01/2005

Abstract
Content

A technique has been devised for measuring the relative humidity levels in the protective helium/water vapor atmosphere in which the Declaration of Independence, the United States Constitution, and the Bill of Rights are encased behind glass panels on display at the National Archives in Washington, DC. The technique is noninvasive: it does not involve penetrating the encasements (thereby risking contamination or damage to the priceless documents) to acquire samples of the atmosphere. The technique could also be applied to similar glass encasements used to protect and display important documents and other precious objects in museums.

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Citation
"Measuring Humidity in Sealed Glass Encasements," Mobility Engineering, June 1, 2005.
Additional Details
Publisher
Published
Jun 1, 2005
Product Code
TBMG-587
Content Type
Magazine Article
Language
English