detail view sample V30_004
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
wet weight | 323.93 g | weight under water | 16.83 g | ||||
weight after impregnation | no value | weight after drying | 178 g | ||||
Umax | 542.0 % | degree of degradation | 1 | ||||
residual density | 0.16 g/cm3 | volume (water displacement) | 307.1 cm3 | ||||
density before conservation | 1.06 g/cm³ | final density | 0.58 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 69.9 % |
nail spacing | before | after | shrinkage |
radial | 27.4 mm | 27.2 mm | 0.8 % |
tangential | 20.8 mm | 20.6 mm | 1.2 % |
longitudinal | 74.2 mm | 74.1 mm | 0.1 % |
volume shrinkage: | 2.1 % |
ASE-radial | 96.1 % | ASE-tangential | 96.1 % |
ASE-longitudinal | 98.7 % | ASE volume | 95.9 % |
volume (previous state) | 307.0 cm3 | volume (final state) | 306.7 cm3 | volume shrinkage | 0.1 % |
surface (previous state) | 261.3 cm2 | surface (final state) | 261.5 cm2 | Surface change | 0.0 % |
radial cut surface (previous state) | 3913.9 mm2 | radial cut surface (final state) | 3910.0 mm2 | radial shrinkage | 0.1 % |
tangential cut surface (previous state) | 3134.0 mm2 | tangential cut surface (final state) | 3192.7 mm2 | tangential shrinkage | -1.9 % |
longitudinal measurement (previous state) | 108.6 mm | average length change | -0.2 mm | longitudinal shrinkage | -0.3 % |
ASE-radial | 99.6 % | ASE-tangential | 104.1 % |
ASE-longitudinal | 103.2 % | ASE volume | 99.8 % |
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, 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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