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Low cost polarized light microscopy.

Authors
Jones-WG; Thorne-PS; Clere-JL
Source
Appl Ind Hyg 1986 Nov; 1(4):191-195
NIOSHTIC No.
00174269
Abstract
A simple, low cost adaptor for converting transmitted light microscopes to polarized light microscopes was described. The adaptor was intended to assist in examining and identifying asbestos (1332214) fibers. The adaptor consisted of a polarizer, an analyzer, a retardation plate, a stage rotation device, and central and annular stops for dispersion sampling. The adaptor was designed to fit conveniently into a mechanical stage device and to be used with 10X objectives. A wide variety of microscopes was converted to polarized light microscopes which were found to be adequate for identifying asbestos in bulk insulation samples. Design specifications for the various components of the adaptor were provided. The authors note that the adaptor can be made easily and at low cost from readily available materials. In addition to asbestos, the adaptor can be used to identify other fibrous materials such as glass fibers, mineral wool, or cellulose, and nonfibrous materials such as silica, calcite, or olivine. The microscopes are also recommended for training industrial hygiene personnel and in field and screening identification applications.
Keywords
NIOSH-Author; Asbestos-fibers; Analytical-instruments; Microscopic-analysis; Industrial-hygiene; Equipment-design; Laboratory-testing; Particulates
CODEN
AIHYEX
CAS No.
1332-21-4
Publication Date
19861101
Document Type
Journal Article
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Issue of Publication
4
ISSN
0882-8032
NIOSH Division
DRDS
Source Name
Applied Industrial Hygiene
State
WV; PA
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