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 کاملLife Cycle Assessment of Man-made Cellulose Fibres
The production of textile materials has undergone dramatic changes in the last century. Man-made cellulose fibres have played an important role for more than 70 years. Today, the man-made cellulose fibre industry is the worldwide second largest biorefinery (next to the paper industry). In the last few years, the interest in man-made cellulose fibres has grown as a consequence of increased envir...
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ژورنال
عنوان ژورنال: Nature
سال: 1960
ISSN: 0028-0836,1476-4687
DOI: 10.1038/187002a0