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Section: ArticlesTitle: Internal wall losses of pharmaceutical dusts during closed-face, 37-mm polystyrene cassette sampling / Mark A. Puskar... [et al.]Notes: Sumario: A current practice for the determination of personal exposures to dusts involves the aspiration of known quantities of air through membrane filters held in 37-mm plastic cassettes. Samples are collected with the cassettes in the closed face configuration. A major negative bias error has been identified with this sampling procedure for low-level pharmaceutical dustsRelated records: En: American Industrial Hygiene Association journal. - Akron, Ohio. - Vol. 52, nº 7, July 1991 ; p. 280-286Materia / lugar / evento: Higiene industrialContaminantes químicosPolvoContaminación atmosféricaControl de la contaminaciónFiltrosMuestreadorMuestreosOtros autores: Puskar, Mark A. Secondary titles: Título: American Industrial Hygiene Association journal Other categories: 872Rights: In Copyright (InC)