title: Size-selective preparation of inorganic fibers for biological experiments.
abstract: Size-selective procedures were developed for the preparation of fiber fractions of uniform size of chrysotile, crocidolite, amosite and glass. The raw material was first ground to a suitable fineness, then prescreened in a vibrating bed aerosol generator and finally suspended in liquids by ultrasonic agitation. Size-separation was then achieved by slow sedimentation. In addition, fiber fractions of exceedingly long-fibers were prepared by utilizing a vibrating sieve in the gas phase or in liquids.
mesh_terms: D000336:Aerosols; D001194:Asbestos; D002498:Centrifugation; D004785:Environmental Pollutants; D005898:Glass; D008854:Microscopy, Electron; D010316:Particle Size; D014961:X-Ray Diffraction
chemical_list: D000336:Aerosols; D004785:Environmental Pollutants; D001194:Asbestos