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KMID : 0895420130230030205
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Journal of Korean Society of Occupational and Enviromental Hygiene
2013 Volume.23 No. 3 p.205 ~ p.211
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Asbestos Analysis of China Sepiolite by Transmission Electron Microscopy
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Song Se-Wook
Chung Yong-Hyun
Han Jeong-Hee
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Abstract
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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.
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KEYWORD
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sepiolite, asbestos containing materials, transmission electron microscope equipped with energy dispersive X-ray spectrometer(TEM-EDS)
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