detail view sample V25_019
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
wet weight | 829.5 g | weight under water | 50 g | ||||
weight after impregnation | no value | weight after drying | 480.1 g | ||||
Umax | 453.0 % | degree of degradation | 1 | ||||
residual density | 0.19 g/cm3 | volume (water displacement) | 779.5 cm3 | ||||
density before conservation | 1.06 g/cm³ | final density | 0.62 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 66.9 % |
nail spacing | before | after | shrinkage |
radial | 60.7 mm | 60.1 mm | 0.9 % |
tangential | 59.4 mm | 59.1 mm | 0.6 % |
longitudinal | 90.5 mm | 90.1 mm | 0.4 % |
volume shrinkage: | 1.9 % |
ASE-radial | 90.1 % | ASE-tangential | 98.1 % |
ASE-longitudinal | 55.8 % | ASE volume | 95.0 % |
volume (previous state) | 784.2 cm3 | volume (final state) | 774.5 cm3 | volume shrinkage | 1.2 % |
surface (previous state) | 552.3 cm2 | surface (final state) | 536.7 cm2 | Surface change | -2.8 % |
radial cut surface (previous state) | 6282.0 mm2 | radial cut surface (final state) | 6215.0 mm2 | radial shrinkage | 1.1 % |
tangential cut surface (previous state) | 6341.5 mm2 | tangential cut surface (final state) | 6341.1 mm2 | tangential shrinkage | 0.0 % |
longitudinal measurement (previous state) | 127.5 mm | average length change | -0.2 mm | longitudinal shrinkage | -0.3 % |
ASE-radial | 97.2 % | ASE-tangential | 100.0 % |
ASE-longitudinal | 112.4 % | ASE volume | 96.7 % |
pretreatment | Keine weitere Vorbehandlung | |
impregnation | impregnant: | PEG 2000, 10-40%-Lцsung 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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