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Interagency Comparison of Respirable Quartz Analysis.

Authors
Huggins-CW; Sh-KB; Snyder-JG; Et Al
Source
For Reference Only At Bureau Libraries :67 pages
Link
NIOSHTIC No.
10004795
Abstract
An interagency investigation was conducted to compare results from five laboratories using infrared spectroscopy and x-ray diffraction techniques to quantitatively determine the quartz content of respirable coal mine dust. The importance of using a quartz standard having the same particle size distribution as the samples analyzed is underscored for both analytical methods. High- temperature ashing techniques in sample preparation were found to contribute to analytical error. Various factors in the preparation of quartz standards are examined, including quartz materials, matrix, and filter type. Laboratories taking precautions to minimize the effects of variation sources discovered during these investigations will be able to place greater confidence in their determinations of quartz in respirable dusts.
Publication Date
19850101
Document Type
CP;
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
OFR 111-85
NIOSH Division
AVRC;
Source Name
For Reference Only At Bureau Libraries
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