detail view sample V25_020
| treatment method: | Einstufige PEG-Konservierung |
| Conservation Laboratory: | Natmus Kopenhagen |
|
|||||
| wet weight | 1000.2 g | weight under water | 59.9 g | ||||
| weight after impregnation | no value | weight after drying | 605.6 g | ||||
| Umax | 457.0 % | degree of degradation | 1 | ||||
| residual density | 0.19 g/cm3 | volume (water displacement) | 940.3 cm3 | ||||
| density before conservation | 1.05 g/cm³ | final density | 0.64 g/cm³ | ||||
| impregnation | no value | proportion of impregnating agent | 68.5 % | ||||
| nail spacing | before | after | shrinkage |
| radial | 37.6 mm | 37.8 mm | -0.5 % |
| tangential | 38.5 mm | 38.9 mm | -1.0 % |
| longitudinal | 105.6 mm | 105.6 mm | 0.0 % |
| volume shrinkage: | -1.5 % | ||
| ASE-radial | 104.8 % | ASE-tangential | 103.3 % |
| ASE-longitudinal | 102.1 % | ASE volume | 104.0 % |
| volume (previous state) | 952.9 cm3 | volume (final state) | 939.3 cm3 | volume shrinkage | 1.4 % |
| surface (previous state) | 615.3 cm2 | surface (final state) | 607.9 cm2 | Surface change | -1.2 % |
| radial cut surface (previous state) | 7543.6 mm2 | radial cut surface (final state) | 7498.1 mm2 | radial shrinkage | 0.6 % |
| tangential cut surface (previous state) | 6485.1 mm2 | tangential cut surface (final state) | 6488.3 mm2 | tangential shrinkage | 0.0 % |
| longitudinal measurement (previous state) | 142.3 mm | average length change | -0.2 mm | longitudinal shrinkage | -0.3 % |
| ASE-radial | 98.4 % | ASE-tangential | 100.1 % |
| ASE-longitudinal | 113.5 % | ASE volume | 96.2 % |
|
|||||
| 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 | ||||
» back