Progress in Monitoring Pub. L. 101-423
Final Report to Congress on the Joint Resolution to Establish a National Policy on Permanent Papers
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Definition of permanence
Pub. L. 101-423 (Appendix 1) recommends the use of "acid free permanent paper" using the specifications established by the Joint Committee on Printing (JCP). For purposes of clarity, this report adheres to the JCP specifications. Thus, an acid free permanent paper is defined to be:
- a fully bleached sheet with a pH of 7.5 or above,
- an alkaline reserve of 2 percent or more,
- a minimum MIT folding endurance in either direction of 30 double folds, and
- a minimum tearing strength in either direction of 25 grams for a 30 lb paper and proportionately higher tearing strengths for heavier papers.
This definition matches most closely the first specification for permanent paper, ANSI Z39.48-1984, developed by National Information Standards Organization, which has strong support in the archival and library communities.
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