detail view sample V30_029

sample: V30_029
treatment method: Einstufige PEG-Konservierung
Conservation Laboratory: Natmus Kopenhagen

Before and after view

sample
wet weight 551.3 g weight under water 26.2 g
weight after impregnation no value weight after drying 296.3 g
Umax 601.0 % degree of degradation 1
residual density 0.15 g/cm3 volume (water displacement) 525.1 cm3
density before conservation 1.05 g/cm³ final density 0.57 g/cm³
impregnation no value proportion of impregnating agent 71.9 %

survey data (caliper method)
nail spacing before after shrinkage
radial 29.5 mm 29.1 mm 1.4 %
tangential 31.1 mm 31.0 mm 0.4 %
longitudinal 87.7 mm 87.8 mm -0.1 %
volume shrinkage: 1.7 %

ASE-radial 93.6 % ASE-tangential 98.6 %
ASE-longitudinal 101.0 % ASE volume 96.7 %

survey data (3D scan)
volume (previous state) 525.9 cm3 volume (final state) 522.7 cm3 volume shrinkage 0.6 %
surface (previous state) 377.1 cm2 surface (final state) 373.4 cm2 Surface change -1.0 %
radial cut surface (previous state) 5327.5 mm2 radial cut surface (final state) 5317.9 mm2 radial shrinkage 0.2 %
tangential cut surface (previous state) 3975.0 mm2 tangential cut surface (final state) 3949.0 mm2 tangential shrinkage 0.7 %
longitudinal measurement (previous state) 113.9 mm average length change -0.2 mm longitudinal shrinkage -0.4 %

ASE-radial 99.3 % ASE-tangential 98.6 %
ASE-longitudinal 103.8 % ASE volume 98.6 %

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, Fixieren der Rinde 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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