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glass wool |
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glass wool [¦glas ′wu̇l] (materials) A mass of glass fibers resembling wool and used as insulation, packing, and air filters. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In the text the authors state that some chemicals, such as glass wool, were downgraded in risk between 1987 and 2002, from "possible human carcinogen" (group 2B) classification, to unclassifiable (group 3). It's basically pultrusion over an insulating core of dense glass wool. On page 1454, Table 5 (under "Respirable dusts and fibers"), glass wool, rock wool, and slag wool fireproofing should not have appeared in the listing of Group 2B human carcinogens because they were downgraded to Group 3 in the latest monograph to address these substances (IARC 2002a); special purpose glass fibers such as E-glass and "475" glass fibers are not used in the "Reinforced plastic industry" but rather in "High-efficiency air filtration media and battery separator media" (IARC 2002a). |
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