Fig. 4

The measurement results for the locations in the National military museum and the Tismana monastery presented in the seven (out of 22) Memori material risk evaluation diagrams, where some risk (red or yellow) were indicated are given in this figure and in Fig. 5. In the top diagram, for lead, the measurement locations are described by the circular results point markers. The circular point markers give the measurement results for the EWO (photo-oxidizing effect) on the horizontal axis, and the results for the acetic + formic acid measurements, represented by the GSD (Glass slide dosimeter) values (see “Methods” section), on the vertical axis. The locations are repeated for all the materials diagrams below the first diagram for lead. For the location outside of the rooms in the Tismana monastery, “T-in corridor outside of rooms”, the EWO dosimeter value (photo-oxidizing effect) was not measured (Table 1), and the value on the x-axis is therefore not determined (see Table 1). “Green” indicates that, within the constraints of present knowledge, it is unlikely that the materials will change significantly within a period of perhaps 30 years. ‘Red’ indicates that damage is likely to occur to objects within 3 years and that damage will require active conservation. ‘Yellow’ indicates a situation in between