detail view sample V23_004
treatment method: | Einstufige PEG-Konservierung |
Conservation Laboratory: | Natmus Kopenhagen |
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wet weight | 969.6 g | weight under water | 71 g | ||||
weight after impregnation | no value | weight after drying | 590.1 g | ||||
Umax | 355.0 % | degree of degradation | 2 | ||||
residual density | 0.24 g/cm3 | volume (water displacement) | 898.6 cm3 | ||||
density before conservation | 1.07 g/cm³ | final density | 0.66 g/cm³ | ||||
impregnation | no value | proportion of impregnating agent | 61.7 % |
nail spacing | before | after | shrinkage |
radial | 54.8 mm | 54.8 mm | 0.0 % |
tangential | 55.3 mm | 54.9 mm | 0.7 % |
longitudinal | 89.0 mm | 88.8 mm | 0.2 % |
volume shrinkage: | 0.9 % |
ASE-radial | 100.1 % | ASE-tangential | 94.8 % |
ASE-longitudinal | 96.1 % | ASE volume | 96.9 % |
volume (previous state) | 902.7 cm3 | volume (final state) | 898.3 cm3 | volume shrinkage | 0.5 % |
surface (previous state) | 604.9 cm2 | surface (final state) | 586.5 cm2 | Surface change | -3.1 % |
radial cut surface (previous state) | 7324.2 mm2 | radial cut surface (final state) | 7495.2 mm2 | radial shrinkage | -2.3 % |
tangential cut surface (previous state) | 5605.5 mm2 | tangential cut surface (final state) | 5582.9 mm2 | tangential shrinkage | 0.4 % |
longitudinal measurement (previous state) | 123.4 mm | average length change | -0.1 mm | longitudinal shrinkage | -0.2 % |
ASE-radial | 107.3 % | ASE-tangential | 98.6 % |
ASE-longitudinal | 109.7 % | ASE volume | 99.1 % |
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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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