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Measurement of Very Small Quantities of Asbestos and Quartz.

Authors
Menis-O
Source
NIOSH 1976 Jun:53-82
Link
NIOSHTIC No.
00057221
Abstract
The differences in structure of various asbestos materials are discussed with methods for the measurement of very small quantities of asbestos and quartz. Chrysotile (12001295), hydrated magnesium- silicate, has a layered structure with circles and spirals. In antigorite, the silica tetrahedra is directly bonded first to one then to the other of the adjacent magnesia. Amphiboles have a ribbon-like structure, the fibrils having a number of ribbons twisted together. Photographs and charts are presented which give the details of the methods for measuring very small quantities of asbestos (1332214) and quartz (1317799).
Keywords
NIOSH-Contract; Contract-210-75-0027; Minerals; Dust-control; Silicates; Chemical-structure; Analytical-methods; Measurement-methods;
CAS No.
12001-29-5; 1332-21-4; 1317-79-9;
Publication Date
19760601
Funding Type
Contract;
Fiscal Year
1976
NTIS Accession No.
NTIS Price
Identifying No.
Contract-210-75-0027
NIOSH Division
DPSE;
Source Name
Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio
State
OH;
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