detail view sample V25_002

sample: V25_002
treatment method: Einstufige PEG-Konservierung
Conservation Laboratory: Natmus Kopenhagen

Before and after view

sample
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 %

survey data (caliper method)
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 %

survey data (3D scan)
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 %

scan view [open 3D view in new tab]

preservation method (details)
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)

time data
duration pretreatment no value duration impregnation 149 weeks duration drying 20 weeks
total duration of conservation: 169 weeks

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