Improving the accuracy of estimating paper permanence for accelerated degradation in closed vials

Abstract To more accurately predict the permanence of paper during natural aging, we studied cellulose aging according to closed vial setup, which compared alternative methods is closer with regard predictions life expectancy. improve kinetic evaluation, not only degradation by hydrolysis and oxidation, but also moisture content in were measured process. This allowed eliminate long-known errors method caused leakage falsely produce different rates for periods. With aim predicting accurately, several ways considering changes influences considered an improved protocol was elaborated that corrects rate chain scission based on average paper. Based this rate, expected half-life DP becomes independent period thus less error-prone reliable. We hope improvement very common closed-vial will quickly be accepted welcomed conservation community.