title: A statistical analysis of asbestos fiber counting in the laboratory and industrial environment.
abstract: The reproducibility of standard fiber counts in the laboratory and four industrial plants is discussed in detail. Under field conditions the standard deviation of the results varied between 0.4-1.2 f/ml. Under ideal laboratory conditions the standard deviations of the counts were approximately 0.2 f/ml. It is concluded that the standard method is sufficiently precise for industrial measurements.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D001194:Asbestos / Q000032:analysis*; D008722:Methods; D013223:Statistics as Topic
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D001194:Asbestos