detail view sample V30_023
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
wet weight | 450.78 g | weight under water | 24.6 g | ||||
weight after impregnation | no value | weight after drying | 248.4 g | ||||
Umax | 511.0 % | degree of degradation | 1 | ||||
residual density | 0.17 g/cm3 | volume (water displacement) | 426.2 cm3 | ||||
density before conservation | 1.05 g/cm³ | final density | 0.59 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 68.5 % |
nail spacing | before | after | shrinkage |
radial | 25.7 mm | 25.4 mm | 1.0 % |
tangential | 29.4 mm | 29.2 mm | 0.5 % |
longitudinal | 77.1 mm | 77.0 mm | 0.1 % |
volume shrinkage: | 1.6 % |
ASE-radial | 95.5 % | ASE-tangential | 98.2 % |
ASE-longitudinal | 99.3 % | ASE volume | 96.9 % |
volume (previous state) | 427.4 cm3 | volume (final state) | 424.1 cm3 | volume shrinkage | 0.8 % |
surface (previous state) | 327.7 cm2 | surface (final state) | 324.5 cm2 | Surface change | -1.0 % |
radial cut surface (previous state) | 4834.1 mm2 | radial cut surface (final state) | 4812.5 mm2 | radial shrinkage | 0.4 % |
tangential cut surface (previous state) | 3311.4 mm2 | tangential cut surface (final state) | 3299.4 mm2 | tangential shrinkage | 0.4 % |
longitudinal measurement (previous state) | 113.5 mm | average length change | -0.1 mm | longitudinal shrinkage | -0.3 % |
ASE-radial | 98.4 % | ASE-tangential | 99.2 % |
ASE-longitudinal | 102.7 % | ASE volume | 98.2 % |
pretreatment | Keine weitere Vorbehandlung | |
impregnation | impregnant: | PEG 2000, 10-40%-Lösung mit Leitungswasser |
impregnation process: | Einlegen der Hölzer in 10%-PEG 2000-Lsg., steigern der Konzentration bis auf 40%, keine zusätzliche Erwärmung der Bäder - Tränkung bei Raumtemperatur | |
drying | Gefriertrocknung in gekühlter Kammer (ca. -30°C) | |
aftercare | Entfernen des PEG-Überschusses von der Oberfläche mit weichem Pinsel und Ethanol, Fixieren der Rinde mit Paraloid B72 (40% in Ethanol) |
duration pretreatment | no value | duration impregnation | 149 weeks | duration drying | 20 weeks |
total duration of conservation: | 169 weeks |
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