detail view sample V30_023

sample: V30_023
treatment method: Einstufige PEG-Konservierung
Conservation Laboratory: Natmus Kopenhagen

Before and after view

sample
wet weight 450.78 g weight under water 24.6 g
weight after impregnation no value weight after drying 248.4 g
Umax 511.0 % degree of degradation 1
residual density 0.17 g/cm3 volume (water displacement) 426.2 cm3
density before conservation 1.05 g/cm³ final density 0.59 g/cm³
impregnation no value proportion of impregnating agent 68.5 %

survey data (caliper method)
nail spacing before after shrinkage
radial 25.7 mm 25.4 mm 1.0 %
tangential 29.4 mm 29.2 mm 0.5 %
longitudinal 77.1 mm 77.0 mm 0.1 %
volume shrinkage: 1.6 %

ASE-radial 95.5 % ASE-tangential 98.2 %
ASE-longitudinal 99.3 % ASE volume 96.9 %

survey data (3D scan)
volume (previous state) 427.4 cm3 volume (final state) 424.1 cm3 volume shrinkage 0.8 %
surface (previous state) 327.7 cm2 surface (final state) 324.5 cm2 Surface change -1.0 %
radial cut surface (previous state) 4834.1 mm2 radial cut surface (final state) 4812.5 mm2 radial shrinkage 0.4 %
tangential cut surface (previous state) 3311.4 mm2 tangential cut surface (final state) 3299.4 mm2 tangential shrinkage 0.4 %
longitudinal measurement (previous state) 113.5 mm average length change -0.1 mm longitudinal shrinkage -0.3 %

ASE-radial 98.4 % ASE-tangential 99.2 %
ASE-longitudinal 102.7 % ASE volume 98.2 %

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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