pub59. New Tools for Preservation: Assessing Long-Term Environmental Effects on Library and Archives Collections
Reilly, James M.; Nishimura, Douglas W.; Zinn, Edward (11/95, 35 pp.) ISBN 1-887334-46-7 $10.00.
Introduces concept of Time Weighted Preservation Index (TWPI), a new way to measure how temperature and humidity changes affect storage environments for paper, photographs, magnetic tape, and any type of organic material. Explains how small changes in storage can significantly extend life of collections.
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