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首页> 外文期刊>International Journal of Science and Qualitative Analysis >Inter-Laboratory Study for the Asbestos Detection in Bulk Materials: First Italian Scheme
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Inter-Laboratory Study for the Asbestos Detection in Bulk Materials: First Italian Scheme

机译：散装材料中石棉检测的实验室间研究：第一个意大利计划

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摘要

Italian Health Ministry established by regulation the minimum requirements for laboratories intending to perform asbestos analysis and the organization of a quality control scheme to which the laboratories must refer. Three proficiency testing schemes for asbestos detection in bulk materials using polarized light microscopy (PLM), X-ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) were developed according to the regulation of Health Ministry. The schemes were organized in rounds. In each round the laboratory received one batch of 4 samples. The participant laboratories were 475. The performance of laboratory as satisfactory, unsatisfactory or awaiting classification. The samples of the rounds were real world materials from abatement project and might contain any of the asbestos types. Ceiling-tile containing vitreous fibers caused the highest frequency of false positive; 87% of errors incurred in FTIR and 60% in XRD. Vinyl-floor tiles caused most false negative; 100% of errors incurred in PLM in the second pilot program, 13% in FTIR and 10% in XRD. One of the main factors causing variability of results turned out to be related to the skill of the analysts. Training and experience of the analysts help to get a reliable and reproducible asbestos analysis.
机译：意大利卫生部通过法规确定了打算进行石棉分析的实验室的最低要求，并制定了实验室必须参考的质量控制计划。根据卫生部的规定，开发了三种使用偏振光显微镜（PLM），X射线衍射（XRD）和傅立叶变换红外光谱（FTIR）进行散装材料石棉检测的能力验证方案。这些计划是全面组织的。在每一轮中，实验室都会收到一批4个样品。参与的实验室为475个。实验室的表现为满意，不满意或正在等待分类。这些弹药的样本是来自减排项目的真实材料，可能包含任何石棉类型。含玻璃纤维的天花板砖引起假阳性的频率最高。 FTIR产生了87％的错误，XRD产生了60％的错误。乙烯基地板砖引起大多数假阴性。在第二个试点计划中，PLM中出现100％的错误，FTIR中出现13％的错误，XRD中发生10％的错误。结果导致结果差异的主要因素之一与分析人员的技能有关。分析人员的培训和经验有助于获得可靠且可重复的石棉分析。

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