detail view sample V23_040
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
![]() |
wet weight | 962 g | weight under water | 80.3 g | ||||
weight after impregnation | no value | weight after drying | 578.9 g | ||||
Umax | 299.0 % | degree of degradation | 2 | ||||
residual density | 0.27 g/cm3 | volume (water displacement) | 881.7 cm3 | ||||
density before conservation | 1.09 g/cm³ | final density | 0.63 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 55.9 % |
nail spacing | before | after | shrinkage |
radial | 43.1 mm | 43.2 mm | -0.2 % |
tangential | 30.2 mm | 30.4 mm | -0.6 % |
longitudinal | 65.5 mm | 65.1 mm | 0.6 % |
volume shrinkage: | -0.1 % |
ASE-radial | 101.2 % | ASE-tangential | 104.6 % |
ASE-longitudinal | 85.1 % | ASE volume | 100.5 % |
volume (previous state) | 881.8 cm3 | volume (final state) | 917.1 cm3 | volume shrinkage | -4.0 % |
surface (previous state) | 604.9 cm2 | surface (final state) | 613.8 cm2 | Surface change | 1.5 % |
radial cut surface (previous state) | 6338.1 mm2 | radial cut surface (final state) | 6568.6 mm2 | radial shrinkage | -3.6 % |
tangential cut surface (previous state) | 6374.6 mm2 | tangential cut surface (final state) | 6595.5 mm2 | tangential shrinkage | -3.5 % |
longitudinal measurement (previous state) | 133.1 mm | average length change | -0.3 mm | longitudinal shrinkage | -0.5 % |
ASE-radial | 111.3 % | ASE-tangential | 111.7 % |
ASE-longitudinal | 123.3 % | ASE volume | 107.8 % |
![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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, Kleben (minimal) abgängiger Späne/Fragmente mit Paraloid B72 (40% in Aceton) |
duration pretreatment | no value | duration impregnation | 149 weeks | duration drying | 20 weeks |
total duration of conservation: | 169 weeks |
» back