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Collection and Analysis of Respirable Mass Granite Samples for Free Silica Davidson Mineral Properties, Inc. Lithonia, Georgia.

Authors
Donaldson-HM; Stringer-WT
Source
NIOSH 1973 Nov:23 pages
Link
NIOSHTIC No.
00073705
Abstract
A study was conducted at the Davidson Mineral Properties, Inc., Lithonia, Georgia, January 15-17, 1973, to evaluate analytical methods for determining free silica (7631869) in Georgia granite dust. The principal business at this facility is the production of granite gravel (SIC-1423). Samples were collected in a tunnel through which crushed gravel is carried on an endless belt. Samples were analyzed by one of three methods: colorimetric, x-ray diffraction, or infrared. For the analysis of free silica in this specific Georgia granite, any one of the analytical methods is satisfactory, provided the 512 millimeters peak is used for infrared analysis. The colorimetric and infrared methods, however, appear to be preferable for individual samples due to the lower variances.
Keywords
NIOSH-Publication; NIOSH-Survey; IWS-30-10; Field-Study; Region-4; Air-quality-measurement; Minerals; Gravel-processing; Air-contaminants; Airborne-particulates; Dusts; Rock;
CAS No.
7631-86-9;
Publication Date
19731101
Fiscal Year
1974
NTIS Accession No.
PB81-228843
NTIS Price
A03
Identifying No.
IWS-30-10
NIOSH Division
DFSCI;
SIC Code
1423;
Source Name
Environmental Investigations Branch, Division of Field Studies and Clinical Investigations, NIOSH, Cincinnati, Ohio, 23 pages, 3 references
State
GA; OH;
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