Differentiating amphibole asbestos from non-asbestos in a complex mineral environment

被引：37

作者：

Van Orden, D. R. ^{[1
]}

Allison, K. A. ^{[1
]}

Lee, R. J. ^{[1
]}

机构：

[1] RJ Lee Grp Inc, Monroeville, PA 15146 USA

来源：

INDOOR AND BUILT ENVIRONMENT | 2008年 / 17卷 / 01期

关键词：

amphibole; asbestos; characteristics; flowchart; cleavage fragment;

D O I：

10.1177/1420326X07087006

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Extending the TEM methods designed for the evaluation of atmospheres in which any primary mineral fibers present are derived from a commercial asbestos fiber is a challenging task. This is because the methods employed leave it to the expertise of the user to identify and evaluate interferences. Improper analysis of non-construction materials for asbestos content often results in the misidentification of non-asbestos amphi-bole particles as asbestos fibers. These errors have received widespread publicity in the media ( such as the asbestos-in-crayons story) and have caused unwarranted reformulation of harmless products. The primary cause of these errors has been a poor understanding of mineralogy and analytical techniques among the many asbestos laboratories that arose following the passage of the 'Asbestos Hazardous Emergency Response Act' (AHERA) regulations. This study outlines a procedure based on published data that can be used to correctly classify a microscopic, elongated particle as either asbestos or non-asbestos.

引用

页码：58 / 68

页数：11