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Asbestos Analysis of China Sepiolite by Transmission Electron Microscopy  

Song, Se Wook (Center for Chemicals Safety and Health, Occupational Safety & Health Research Institute)
Chung, Yong Hyun (Center for Chemicals Safety and Health, Occupational Safety & Health Research Institute)
Han, Jeong Hee (Center for Chemicals Safety and Health, Occupational Safety & Health Research Institute)
Publication Information
Journal of Korean Society of Occupational and Environmental Hygiene / v.23, no.3, 2013 , pp. 205-211 More about this Journal
Abstract
Objectives: 21 sepiolite substances produced in China were investigated for the presence of asbestos in their materials. Materials and methods: In order to identify asbestos in sepiolite substances, test materials were analyzed using a transmission electron microscope equipped with energy dispersive X-ray spectrometer (TEM-EDS) for confirming their shape and components (atomic %). Results: Five of 21 sepiolte substances were asbestos-containing materials. Two chrysotile containing sepiolite proved to be asbestoscontaining materials, as did two chrysotile mixed with tremolite containing sepiolite. 16 sepiolite substances did not contain asbestos materials. Conclusions: When importing sepiolite substances, they must be analyzed to determine if there is asbestos in their materials.
Keywords
sepiolite; asbestos containing materials; transmission electron microscope equipped with energy dispersive X-ray spectrometer (TEM-EDS);
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