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19:02 Jan 15, 2002
Spanish to English translations [PRO] / Banknote production
Spanish term or phrase:prueba de largo de ruptura
Test performed to measure the degree of elastic deformation of security paper
Explanation: Standards for Permanent Paper
Ivar A. L. Hoel
Royal School of Librarianship and Information Science
.........It follows from the definitions given that archival paper is permanent paper that also is durable. Any paper that is made according to ISO 11108 will also meet the requirements of ISO 9706. ISO 9706 for permanent paper has requirements to
minimum strength, measured by a *tear test*;
minimum content of substances (such as calcium carbonate) that neutrali-ze acid action, measured by the alkali reserve;
maximum content of easily oxidized material, mea-sured by the kappa num-ber;
maximum and minimum pH values of a cold water ex-tract of the pa-per.