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NIOSH Analytical Method Silica, Crystalline, S315, (Set S).

Authors
NIOSH
Source
NIOSH 1976 Feb:13 pages
Link
NIOSHTIC No.
00072633
Abstract
The standard method is described for the determination of the crystalline silica (7631869), quartz (1317799), cristobalite, and tridymite (1317948), for use in compliance with the OSHA standard, which is dependent on the content of silicon-dioxide. The air sample is drawn through a silver membrane filter, which is subjected to X-ray diffraction analysis. The method has been validated over the range of 0.167 to 0.846 milligrams per cubic meter using a sample of granite dust known to contain 29.35 percent silicon- dioxide. The coefficient of variation in the tests sampling was advantages and disadvantages, apparatus, reagents, procedure, collection and shipping of samples, sample analysis, determination of percent of silicon-dioxide in bulk air sample, calibration and standards, and calculations.
Keywords
NIOSH-Analytical-Method; Standards; Standards-Completion-Program; Analytical-Method; SCP; Sampling; Set-S; Silicates; Minerals; Silicon-compounds; Silica-dusts; Exposure-limits;
CAS No.
7631-86-9; 1317-79-9; 1317-94-8;
Publication Date
19760227
Fiscal Year
1976
NTIS Accession No.
NTIS Price
Identifying No.
S315
NIOSH Division
DPSE;
Source Name
Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio, 13 pages, 4 references
State
OH;
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