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Heritage Science
Fig. 12 | Heritage Science

Fig. 12

From: Conservation risks for paper collections induced by the microclimate in the repository of the Alessandrina Library in Rome (Italy)

Fig. 12

Colorimetric coordinates of the points measured on the green mock sample (a) and total colorimetric difference ΔE* as a function of time (b). The measured data (dots) were used to fit the curve in Eq. 3 (green dashed line) given. P0 = protected area (October 2019) and E1, E2, E3 = areas exposed to light (February, June and October 2020, respectively)

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