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MAP20071017143Walton, W.H.A Microscope eyepiece graticule for the evaluation of fibrous dusts / W.H. Walton and S.T. BeckettSumario: A microscope eyepiece graticule has been designed specifically to help in the counting of respirable fibrous dust. This is now in use in a number of laboratories and has been found to have several advantages over conventional designs, in particular when determining the length and diameter of fibresEn: The Annals of occupational hygiene. - Oxford [etc.]. - nº 1, July 1977 ; p. 19-231. Higiene industrial. 2. Contaminantes químicos. 3. Contaminación atmosférica. 4. Control de la contaminación. 5. Laboratorios. 6. Microscopios. 7. Amianto. 8. Fibra de vidrio. I. Beckett, S.T.. II. Título. III. Título: The Annals of occupational hygiene.