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KMID : 0385520140270030153
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Analytical Science & Technology
2014 Volume.27 No. 3 p.153 ~ p.160
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A study on the quantitation of asbestos by the visual estimation and point counting method
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Choi Yun-Ho
Kim Tae-Hwa
Bae Yong-Soo
Kim Tae-Hyun
Kim Hyeon-Ja
Jang Eun-Ah
Hwang Beom-Goo
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Abstract
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While variety of cases of studies about asbestos analysis methods are released internationally, the results of Asbestos Containing Materials (ACM) according to differences in the method of the analysis is becoming an issue. In this study, homogeneity ensured ACM samples were analyzed by visual estimation method and point counting method, and the result cound be used not only to improve the reliability on asbestos analysis of the institutions and analysts but also to obtain the basic data of Polarizing Light Microscope (PLM) analysis by comparing and evaluating. Asbestos analysis were divided into qualitative and quantitative analysis method. The quantitative analysis was performed by visual estimation method and point counting method (total 400 points) of EPA 600-R-93-116 method by using PLM. Firstly, The following was the result of homogeneity of the samples by ANOVA (Analysis of variance) and the results were satisfied.
The results of qualitative analysis showed that the samples were chrysotile and amosite, and about the results of quantitative analysis, asbestos concentration determined by point counting method tend to be lower than concentrations determined by visual estimation method and also, pont counting method was a little more complicated and time-consuming.
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KEYWORD
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asbestos, ACM, qualitative analysis, quantitative analysis, visual estimation method, point counting method,
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