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Asbestos Determination of Some Domestic Building-Materials Using X-ray diffraction
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 Title & Authors
Asbestos Determination of Some Domestic Building-Materials Using X-ray diffraction
Hwang, Jin-Yeon; Lee, Hyo-Min; Oh, Ji-Ho; Park, Gi-Nam;
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 Abstract
The asbestos contents in some representative building materials were analyzed using JIS (Japanese Industrial Standard) X-ray diffraction (XRD) method. The changes in mineral composition during analysis process and problems in JIS method were also examined. XRD analysis of some representative domestic building materials used for roof, wall, ceiling, and floor indicates that slate have the highest asbestos content having 6.87~6.93% of chrysotile. Other building materials analyzed in this study also have 1.35~3.98% of chrysotile contents. The XRD analysis results of asbestos contents in some domestic building materials are presented in this study. This method is very effective for the asbestos content evaluation of building materials according to newly modified asbestos content regulation (Law of Industrial Safety and Health, 2007-26) that limits asbestos content less than 0.1% by Ministry of Employment and Labor. Small amount of tremolite as well as chrysotile were also observed in some samples. With consideration of crystal shape, contents and geological occurrence, it is considered that tremolite is an associated mineral of chrysotile and is not intentionally added. Complemental analyses with optical microscope and SEM/EDS are also necessary because XRD method cannot distinguish asbestiform from non-asbestiform. The XRD method applied in this study is very effective in the asbestos content analysis of building materials, specially building materials showing high asbestos concentration in residues due to the high loss rate with ashing and acid dissolution procedure.
 Keywords
Asbestos;chrysotile;building materials;quantitative analysis;X-ray diffraction analysis;
 Language
Korean
 Cited by
1.
An Asbestos Risk Assessment and Areal Distribution of Asbestos Containing Materials in Public Buildings, Journal of Korean Society of Occupational and Environmental Hygiene, 2016, 26, 3, 267  crossref(new windwow)
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