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• W2338298506 abstract "대표적인 일부 건축자재의 석면 함량을 일본공업표준법 (JIS)에 따른 X-선회절분석으로 측정하였고, 분석과정에서의 광물학적 성분변화와 문제점을 검토하였다. 국내의 슬레이트, 벽재, 천장재의 대표적인 건축자재에 대해 석면 함량을 정량한 결과, 슬레이트 시료가 6.87~6.93%의 온석면을 함유하여 가장 많은 석면을 함유하고 있는 것으로 분석되었다. 분석된 다른 건축자재들에서도 1.35~3.98%의 범위로 다양한 양의 온석면이 포함되어 있는 것으로 분석되었다. 이번 연구에서 국내에서 처음으로 일부 건축자재의 석면 함량에 대한 X-선회절방법에 의한 분석결과를 제시하였으며, 이런 방법을 통하여 국내에서 최근에 개정된 규정(노동부 산업안전보건법 제2007-26호)에서 규정한 석면의 허용기준량 0.1% 함량을 평가하는데 효과적인 것으로 나타났다. 일부 시료에서 온석면과 함께 투각섬석이 소량 수반되고 있음이 나타났으나, 이들의 결정형태와 그 함량과 지질학적 산출상태 등으로 보아, 석면 활용의 목적으로 첨가한 것이 아니고 온석면에 본래 수반되었던 볼순광물로 나타난 것으로 생각된다. X-선회절분석으로 석면상과 비석면상의 구분이 어렵기 때문에 형태를 관찰할 수 있는 광학현미경과 전자현미경의 보조적인 관찰도 필요한 것으로 나타났다. 이번에 사용한 X-선회절분석 방법에서는 가열처리와 산처리에 의한 소실율이 많아 석면의 농집도가 높은 건축자재 시료에 가장 효과적인 것으로 나타났다. 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." @default.
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• W2338298506 date "2011-06-30" @default.
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• W2338298506 title "Asbestos Determination of Some Domestic Building-Materials Using X-ray diffraction" @default.
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• W2338298506 doi "https://doi.org/10.9727/jmsk.2011.24.2.119" @default.
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