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Accelerated Aging of Paper: Can it Really Foretell the Permanence of Paper

Preservation Research and Testing Series No.9503

Chandru J. Shahani
Preservation Research and Testing Office, November 1995

The experimental data presented here were developed by Library of Congress staff members:
Frank Hengemihle, Norris Lindsey, Sang B. Lee, Tekisha Smith and Norman Weberg.

Diane Kresh,
Director Preservation Directorate


Table of Contents

Introduction

Status of Accelerated Aging of Paper

Research in Accelerated Aging of Paper

Comparison of Accelerated Aging of Paper in Stacks and Sheets

Aging of Paper Sealed within Polyester Film

Inadequacy of Single Sheet Accelerated Aging Methods

Accelerated Aging within Sealed Enclosures

Comparison of Accelerated Aging Methods

Accelerated Aging under Light

Measurement of Rates of Degradation

Conclusion

References

Supporting Documents

Table 1. Accelerated Aging of Springhill™ Offset Paper Under Different Conditions

Figure 1. Effect of Temperature on Accelerated aging of Springhill™ Offset Paper (Single Sheets and Stacks Aged at 50% RH)

Figure 2. Aging of Encapsulated Springhill™ Offset

Figure 3. Accelerated Aging of Springhill™ Offset Paper within Aluminized PET Bags (Effect of Number of Paper Sheets)

Figure 4. Loss of Physical Properties on Aging (Springhill™ Offset Aged at 90°C and 50% RH)


A printed copy of this report can be obtained from:

Preservation Directorate
Library of Congress
Washington, D.C. 20540-4520
Telephone: 202-707-0236; FAX: 202-707-3434
Internet online form: Ask a Librarian.

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