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Document ID (ISN)42810
CIS number 84-1833
ISSN - Serial title 0034-8732 - Prevención
Year 1983
Convention or series no.
Author(s) Pérez Olozaga C., Velasco J., Ruiz Iturregui J.M.
Title Determination of free silica in the environment of foundries
Original title Determinación de la sílice libre en el ambiente de las fundiciones [in Spanish]
Bibliographic information Oct.-Nov. 1983, No.86, p.14-22. Illus. 8 ref.
Abstract A study of the over-estimate of silica concentration in the workplace air of foundries, due to the presence of other substances detected by infrared spectrophotometry. Significant interference was produced by the following substances (percentages refer to the minimum concentrations of these substances relative to silica that would produce such interference): iron oxide (300%); aluminium oxide (100%); graphite (100%); kaolin (50%); bentonite (100%).
Descriptors (primary) infrared spectrophotometry; free silica; foundries; determination in air; dust analysis
Descriptors (secondary) iron oxide; bentonite; kaolin; graphite; aluminium oxide; respirable dust; silica
Document type D - Periodical articles
Subject(s) Dust, aerosols and related diseases
Broad subject area(s)
Browse category(ies) Foundries, metalcasting and forging operations