Fig. 7From: Non-destructive collection survey of the historical Classense Library. Part I: Paper characterisationRange of RH and T values that could lead to the observed rate of rag paper degradation (average pH 6.6) of 4.2·10−7 year−1, based on the Collections Demography dose response function for historic paper [32]. The green range represents ± 1SE interval for the rate, the yellow one ± 2SE, and the orange one ± 3SEBack to article page