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ISO 22262-1 1st Edition, July 1, 2012 Air quality - Bulk materials - Part 1: Sampling and qualitative determination of asbestos in commercial bulk materials
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 22262 specifies methods for sampling bulk
materials and identification of asbestos in commercial bulk
materials. This part of ISO 22262 specifies appropriate sample
preparation procedures and describes in detail the procedure for
identification of asbestos by polarized light microscopy and
dispersion staining.
This part of ISO 22262 also specifies simple procedures for
separation of asbestos fibres from matrix materials such as
asphalt, cement, and plastics products. Optionally, identification
of asbestos can be carried out using scanning electron microscopy
or transmission electron microscopy with energy dispersive X-ray
analysis. Information is also provided on common analytical
problems, interferences and other types of fibre that may be
encountered in the analysis.
This part of ISO 22262 is applicable to qualitative
identification of asbestos in specific types of manufactured
asbestos-containing products and commercial minerals. This part of
ISO 22262 is applicable to the analysis of fireproofing, thermal
insulation, and other manufactured products or minerals in which
asbestos fibres can readily be separated from matrix materials for
identification.
NOTE This part of ISO 22262 is intended for use by microscopists
who are familiar with polarized light microscopy methods and the
other analytical procedures specified (References [16]–[19]). It is
not the intention of this part of ISO 22262 to provide instruction
in the fundamental analytical techniques.