Kaolin is an inert material with a broad range of applications, e.g. as an insecticide and as a filling substance in the formulation of biopesticides. Hence, bees that dispense biopesticides to the field in the context of entomovectoring are exposed to elevated risks because of side-effects of those products. Here, we investigated with use of bumbl...
Scattering properties of mineral dust and ice crystals were investigated in two aerosol chambers (AIDA, ASA) at the Institut fuer Meteorologie und Klimaforschung at Forschungszentrum Karlsruhe. For this purpose, a linear polarised laser (wavelength 488 nm) was directed horizontally though the chamber. The light scattered by the aerosol was detected...
Explosion indices of tungsten dusts and graphite/tungsten dust mixtures are measured using a standard method of 20-I sphere. Three tungsten dusts differing in characteristic particle size, 1, 5, and 12 #mu#m, are tested. Two coarser dusts do not appear to explode under the standard conditions; the finer dust is able to explode in a wide range of co...
Der vorliegende 22. Band des Silikoseberichtes unterrichtet die Oeffentlichkeit ueber die von der 1954 gegruendeten Arbeitsgemeinschaft Staub-und Silikosebekaempfung Nordrhein-Westfalen durchgefuehrten Untersuchungen im Zeitraum 2000 bis 2002. Die Schwerpunkte der Arbeit liegen auf den Gebieten der technischen Staubmessung und Staubbekaempfung sowi...
An experimental program was initiated at FZK to evaluate the explosion hazard of ITER-relevant dusts. A standard method of 20-l-sphere was chosen to rank the dusts as explosive amongst other industrial dusts. The facility was built up. As a first step, graphite dusts were tested. Their explosion indices -maximum overpressure and pressure rise rate ...
