detail view sample V14_025
| treatment method: | Einstufige PEG-Konservierung |
| Conservation Laboratory: | Natmus Kopenhagen |
|
|||||
| wet weight | 1802.8 g | weight under water | 198.2 g | ||||
| weight after impregnation | no value | weight after drying | 1062.8 g | ||||
| Umax | 203.0 % | degree of degradation | 2 | ||||
| residual density | 0.37 g/cm3 | volume (water displacement) | 1604.6 cm3 | ||||
| density before conservation | 1.13 g/cm³ | final density | 0.69 g/cm³ | ||||
| impregnation | no value | proportion of impregnating agent | 40.7 % | ||||
| nail spacing | before | after | shrinkage |
| radial | 67.3 mm | 65.3 mm | 3.0 % |
| tangential | 66.2 mm | 62.3 mm | 5.9 % |
| longitudinal | 87.2 mm | 87.0 mm | 0.2 % |
| volume shrinkage: | 8.9 % | ||
| ASE-radial | 70.6 % | ASE-tangential | 64.9 % |
| ASE-longitudinal | 85.5 % | ASE volume | 66.2 % |
| volume (previous state) | 1595.5 cm3 | volume (final state) | 1543.6 cm3 | volume shrinkage | 3.3 % |
| surface (previous state) | 806.6 cm2 | surface (final state) | 784.6 cm2 | Surface change | -2.7 % |
| radial cut surface (previous state) | 9296.1 mm2 | radial cut surface (final state) | 9100.3 mm2 | radial shrinkage | 2.1 % |
| tangential cut surface (previous state) | 8981.7 mm2 | tangential cut surface (final state) | 8923.1 mm2 | tangential shrinkage | 0.7 % |
| longitudinal measurement (previous state) | 127.3 mm | average length change | -0.1 mm | longitudinal shrinkage | -0.1 % |
| ASE-radial | 92.6 % | ASE-tangential | 98.5 % |
| ASE-longitudinal | 115.7 % | ASE volume | 92.9 % |
|
|||||
| 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, nachträgliche Oberflächenfestigung mit 25%iger PEG 2000-Lsg. in Ethanol, Kleben abgängiger Späne/Fragmente mit Paraloid B72 (40% in Aceton) | |
| duration pretreatment | no value | duration impregnation | 182 weeks | duration drying | 30 weeks |
| total duration of conservation: | 212 weeks | ||||
» back