detail view sample V25_012
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
wet weight | 810 g | weight under water | 52.5 g | ||||
weight after impregnation | no value | weight after drying | 491.5 g | ||||
Umax | 414.0 % | degree of degradation | 1 | ||||
residual density | 0.21 g/cm3 | volume (water displacement) | 757.5 cm3 | ||||
density before conservation | 1.07 g/cm³ | final density | 0.66 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 66.0 % |
nail spacing | before | after | shrinkage |
radial | 56.4 mm | 56.2 mm | 0.3 % |
tangential | 53.2 mm | 52.6 mm | 1.1 % |
longitudinal | 91.5 mm | 91.3 mm | 0.2 % |
volume shrinkage: | 1.5 % |
ASE-radial | 97.2 % | ASE-tangential | 96.4 % |
ASE-longitudinal | 80.6 % | ASE volume | 96.0 % |
volume (previous state) | 757.5 cm3 | volume (final state) | 747.8 cm3 | volume shrinkage | 1.3 % |
surface (previous state) | 547.2 cm2 | surface (final state) | 530.0 cm2 | Surface change | -3.1 % |
radial cut surface (previous state) | 6253.8 mm2 | radial cut surface (final state) | 6214.9 mm2 | radial shrinkage | 0.6 % |
tangential cut surface (previous state) | 5655.0 mm2 | tangential cut surface (final state) | 5610.2 mm2 | tangential shrinkage | 0.8 % |
longitudinal measurement (previous state) | 127.1 mm | average length change | -0.2 mm | longitudinal shrinkage | -0.3 % |
ASE-radial | 98.4 % | ASE-tangential | 98.4 % |
ASE-longitudinal | 111.8 % | ASE volume | 96.6 % |
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 |
duration pretreatment | no value | duration impregnation | 149 weeks | duration drying | 20 weeks |
total duration of conservation: | 169 weeks |
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