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Composition,Respirable Fraction and Dissolution Rate of 24 Stone Wool MMVF with their Binder
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نویسنده
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wohlleben w. ,waindok h. ,daumann b. ,werle k. ,drum m. ,egenolf h.
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منبع
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particle and fibre toxicology - 2017 - دوره : 14 - شماره : 1
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چکیده
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Background: man-made vitreous fibres (mmvf) are produced on a large scale for thermal insulation purposes. after extensive studies of fibre effects in the 1980ies and 1990ies,the composition of mmvf was modified to reduce the fibrotic and cancerogenic potential via reduced biopersistence. however,occupational risks by handling,applying,disposing modern mmvf may be underestimated as the conventional regulatory classification -combining composition,in-vivo clearance and effects- seems to be based entirely on mmvf after removal of the binder. results: here we report the oxide composition of 23 modern mmvf from germany,finland,uk,denmark,russia,china (five different producers) and one pre-1995 mmvf. we find that most of the investigated modern mmvf can be classified as high-alumina,low-silica wool
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کلیدواژه
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but several were on or beyond the borderline to pre-1995 Rock (Stone) wool. We then used well-established flow-through dissolution testing at pH 4.5 and pH 7.4
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آدرس
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basf se,department material physics and analytics,ludwigshafen, Germany, basf se,department material physics and analytics,ludwigshafen, Germany, basf se,department of aerosol technology,ludwigshafen, Germany, basf se,department material physics and analytics,ludwigshafen, Germany, basf se,department material physics and analytics,ludwigshafen, Germany, basf se,department material physics and analytics,ludwigshafen, Germany
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Authors
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