detail view sample V25_002
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
wet weight | 844.2 g | weight under water | 43.9 g | ||||
weight after impregnation | no value | weight after drying | 475.8 g | ||||
Umax | 541.0 % | degree of degradation | 1 | ||||
residual density | 0.16 g/cm3 | volume (water displacement) | 800.3 cm3 | ||||
density before conservation | 1.06 g/cm³ | final density | 0.60 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 70.7 % |
nail spacing | before | after | shrinkage |
radial | 68.6 mm | 67.8 mm | 1.2 % |
tangential | 67.7 mm | 67.4 mm | 0.4 % |
longitudinal | 91.2 mm | 91.0 mm | 0.2 % |
volume shrinkage: | 1.8 % |
ASE-radial | 87.6 % | ASE-tangential | 98.6 % |
ASE-longitudinal | 75.6 % | ASE volume | 95.2 % |
volume (previous state) | 799.6 cm3 | volume (final state) | 787.3 cm3 | volume shrinkage | 1.5 % |
surface (previous state) | 529.4 cm2 | surface (final state) | 516.8 cm2 | Surface change | -2.4 % |
radial cut surface (previous state) | 7983.0 mm2 | radial cut surface (final state) | 7884.5 mm2 | radial shrinkage | 1.2 % |
tangential cut surface (previous state) | 6420.2 mm2 | tangential cut surface (final state) | 6420.8 mm2 | tangential shrinkage | 0.0 % |
longitudinal measurement (previous state) | 126.8 mm | average length change | -0.1 mm | longitudinal shrinkage | -0.2 % |
ASE-radial | 96.8 % | ASE-tangential | 100.0 % |
ASE-longitudinal | 107.9 % | ASE volume | 95.9 % |
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 Ethanol) |
duration pretreatment | no value | duration impregnation | 149 weeks | duration drying | 20 weeks |
total duration of conservation: | 169 weeks |
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