title: [The determination of asbestos fiber concentration by scanning electron microscopy: a comparison of the results obtained by different laboratories].
abstract: Recently the use of scanning electron microscopy to evaluate asbestos fibre concentration in the environment has been prescribed by national law. So far data on the correlatability of results provided by different laboratories are not available. In the present study 55% of results obtained by the participants was in the range of +/- 30% of the mean and 90% in the range of +/- 50%. One of the main factors causing variability of results turned out to be related to the behaviour of technicians.
authors.affiliation: Laboratorio di Ultrastrutture, Istituto Superiore di Sanità, Roma.
authors.forename: L
authors.initials: L
authors.lastname: Paoletti
authors.forename: C
authors.initials: C
authors.lastname: Martinelli
authors.forename: L
authors.initials: L
authors.lastname: Camilucci
authors.forename: G
authors.initials: G
authors.lastname: Fornaciai
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D001194:Asbestos / Q000032:analysis*; D005374:Filtration / Q000295:instrumentation; D007558:Italy; D007753:Laboratories / Q000706:statistics & numerical data; D008855:Microscopy, Electron, Scanning / Q000379:methods; D019016:Mineral Fibers / Q000032:analysis; D015588:Observer Variation; D010316:Particle Size; D010865:Pilot Projects; D018709:Statistics, Nonparametric
chemical_list: D000395:Air Pollutants, Occupational; D019016:Mineral Fibers; D001194:Asbestos
vernacular_title: Determinazione della concentrazione di fibre di amianto mediante microscopia elettronica a scansione: confronto dei risultati ottenuti da laboratori diversi.