JIS K 3850-2:2000 English Edition

Measuring method for airborne fibrous particles Part 2: Direct-transfer transmission electron microscopy method

Abstract

This Standard specifies a reference method using transmission electron microscopy (TEM) for the determination of the concentration of asbestos structures in ambient atmospheres and includes measurement of the lengths, widths and aspect ratios of the asbestos structures. The method allows determination of the type of asbestos fibres present. The method cannot discriminate between individual fibres of the asbestos and non-asbestos analogues of the same amphibole mineral.

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