منابع مشابه
Man-made Mineral Fibres
practice, the detection Ii mit of scanning electron microscopy is about 0.1 j.m (Middleton, 1982). Transmission electron microscopy may be required to detect very thin fibres (Rood & Streeter, 1985). The elemental composition of individual fibres can be determined with an energy-dispersive X-ray ana1ysis attachment combined with an electron microscope (Middleton, 1982). Fibres are counted and s...
متن کاملMan-made mineral fibres.
minerai fibres in boards for sound-insulation of ceiling (Dan.). Ugeskr. Laeger, 145, 43-47 American Conference of Governmental Industria1 Hygienists (1986) Threshold Limit Values and Biological Exposure Indices/or 1986-1987, Cincinnati, OH, pp. 19,34 Andersen, A. & Langmark, F. (1986) Incidence of cancer in the mineral-wool producing industry in Norway. Scand. J. Work Environ. Health, 12 (Supp...
متن کاملMesotheliomas, minerals, and man-made mineral fibres.
Editorial Mesotheliomas, minerals, and man-made mineral fibres In spite of much research and frequent international meetings no clear advice can yet be given on the prevention of mesotheliomas. After the original observations of Wagner et al,' the evidence from South Africa has been consistent with t'he view that only crocidolite causes meso-thelioma. Although conditions in the African chrysoti...
متن کاملGeneral Remarks on Man-made Mineral Fibres
induction of cancer. It is important that sufficient numbers of fibres from each sample to be tested for carcinogenicity be measured using methods that allow detection of both submicroscopie and microscopic fibres, so that the number of fibres of specific dimensional categories per unit mass can be calculated. When characterizing exposures to man-made mineraI fibres, it is necessary to specify ...
متن کاملFollow up study of workers exposed to man made mineral fibres.
A survey of workers in seven man made mineral fibre (MMMF) production plants, the subject of a previous report, was conducted, with other blue collar workers serving as regional comparisons. Based on the median reading of chest radiographs by five readers, a low prevalence of small opacities, all at the 1/0 and 1/1 profusion levels, was again found: for workers with MMMFs, 23/1435 (1.6%); for c...
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ژورنال
عنوان ژورنال: Journal of the Textile Machinery of Japan - Proceedings -
سال: 1968
ISSN: 1883-8731
DOI: 10.4188/transjtmsj1965a.21.p512