Filtern
Erscheinungsjahr
Dokumenttyp
- Vortrag (67)
- Zeitschriftenartikel (46)
- Beitrag zu einem Sammelband (28)
- Posterpräsentation (21)
- Beitrag zu einem Tagungsband (18)
- Buchkapitel (17)
- Sonstiges (11)
- Forschungsbericht (7)
- Monografie (2)
- Sammelband (Herausgeberschaft für den kompletten Band) (1)
Sprache
- Deutsch (109)
- Englisch (107)
- Russisch (2)
- Mehrsprachig (1)
Referierte Publikation
- nein (219) (entfernen)
Schlagworte
- Archaeometry (24)
- Zerstörungsfreie Prüfung (21)
- Archäometrie (20)
- Cultural heritage (15)
- Non-destructive testing (14)
- Hinterglasmalerei (10)
- Kunst- und Kulturgut (10)
- Röntgenfluoreszenzanalyse (8)
- Inks (7)
- X-ray fluorescence analysis (7)
Organisationseinheit der BAM
Eingeladener Vortrag
- nein (67)
The emission levels of high boiling brominated (BFR) and phosphoric (POC) flame retardants (FR) in different materials were examined. For the determination of the emission rate the tests were done in different emission test chambers and cells under standard conditions (23 C, 50% RH and fixed area specific air flow rates). Selected products, e.g. printed circuit boards, were investigated at elevated temperature (e.g. 60 C) to simulate working conditions. Applied analytical techniques for the air samples adsorbed on polyurethane foam (PUF) are soxhlet and ultrasonic extraction. Different conditions were used to analyse the FR via GC-MS. Based on the first results it could be demonstrated that the emission depends on material density and surface condition. The concentrations over time obtained for tris(3-chloropropyl)-phosphate, e.g., from emission test chamber and cell show a good correlation, partly the measured concentration are different. Sampling at elevated temperature gives higher concentrations.
Nowadays, micro-x-ray fluorescence analysis has become an established tool for the non-destructive investigation of art objects. However, as these types of sample often forms complex and inhomogeneous layer systems, the quantitative evaluation of the measurements is far from a standard routine. In this paper a fingerprint model is described, which we developed to discriminate between different iron-gall inks of historical manuscripts or compositions. Fundamental parameter methods are used to take self-attenuation, interference from the paper background and diffusion of the ink into the paper into account. The capability of the method to contribute to the solution of archaeometric problems is exemplified by the investigation of an ancient composition. Finally, the restrictions of the model and possible improvements are discussed. Copyright © 2004 John Wiley & Sons, Ltd.