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NIOSH Update:NIOSH Document on Refractory Ceramic Fibers Provides Thorough Review of Data, Exposure Recommendations |
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Contact: Fred Blosser (202) 401-3749 A comprehensive scientific document on occupational exposures to refractory ceramic fibers is now available from the National Institute for Occupational Safety and Health (NIOSH). The document provides a thorough critical review of scientific information concerning occupational exposures to refractory ceramic fibers, recommends an exposure limit to address potential work-related health effects, and outlines a recommended strategy to minimize exposures in the workplace. The document, "Criteria for a Recommended Standard: Occupational Exposure to Refractory Ceramic Fibers," DHHS (NIOSH) Publication No. 2006-123, incorporates an intensive NIOSH evaluation of the published scientific literature, as reflected by more than 230 cited references. It also incorporates comments by independent scientific peer-reviewers and diverse stakeholder representatives. NIOSH estimates that approximately 31,500 workers are potentially exposed to refractory ceramic fibers during manufacturing, distribution, handling, installation, and removal of these materials. Refractory ceramic fibers are synthetic fibers produced by the melting and blowing or spinning of calcined kaolin clay or a combination of alumina, silicon dioxide, or other oxides. They are used in commercial applications requiring lightweight insulation that is capable of withstanding high temperatures, such as furnace and kiln insulation. The 203-page criteria document:
"The new criteria document builds on the rich body of scientific information that has entered the published literature since NIOSH's pioneering 1977 review of occupational exposures to man-made mineral fibers," said NIOSH Director John Howard, M.D. "The document recommends prudent measures for minimizing exposures, consistent with good practices already established by the industry. It also points to areas of research that continue to be necessary, in the interim, to resolve ongoing scientific uncertainties." The criteria document is available in electronic form on the NIOSH web page at www.cdc.gov/niosh/docs/2006-123/ . Printed copies can be obtained by calling the toll-free NIOSH information number, 1-800-35-NIOSH (1-800-356-4674) or by visiting the NIOSH web page, www.cdc.gov/niosh. |