INDUSTRY|industrial structures and policy|industrial structures · PRODUCTION, TECHNOLOGY AND RESEARCH|technology and technical regulations
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- folding endurance | fold endurance | folding strength
- en
- Definition "logarithm (to the base 10) of the number of double folds required to cause rupture of a piece of paper when tested under applied standard stress conditions" Reference "COM-Terminology Coordination, based on: International Organization for Standardization. ISO 5626:1993. 'Paper — Determination of folding endurance' (29.8.2022). ISO, 1993"
- Comment "Not to be confused with fold number.The test is primarily used for testing papers that are frequently handled such as currency (bank note) papers, maps and wrapping papers. The ageing characteristics of a paper can be assessed by measuring fold endurance before and after accelerated environmental ageing."