Occupational Safety and Health Administration OSHA

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The following references aid in evaluating silica exposures in the workplace.

  • Exposure to Silica Dust on Continuous Mining Operations Using Flooded-Bed Scrubbers. US Department of Health and Human Services (DHHS), National Institute for Occupational Safety and Health (NIOSH) Publication No. 97-147, (1997, August). Describes the hazard of silica exposures when flooded-bed scrubbers are designed improperly, and provides recommendations.
  • Silica Crystalline: Quartz - Analytical Methodologies. OSHA, (2003). Reviews analytical methods for silica.
  • OSHA Technical Manual (OTM). OSHA Directive TED 01-00-015 [TED 1-0.15A], (1999, January 20).
  • Cyclone Leak Test Procedure. OSHA, (1997, September 15). Describes a method of leak testing cyclone sampler assemblies used for respirable sampling of silica.
  • Silica Industrial Hygiene Monitoring - OSHA Consultation Program [39 KB PDF, 3 pages]. OSHA, (1994, August). Shows the x-ray diffraction pattern - quartz standard, and other information for evaluating silica.
  • Overview of Analytical Procedure [2 MB PDF, 1 page]. OSHA. Shows a flow chart for the handling of silica samples.
Sampling and Analysis

OSHA Occupational Chemical Database. OSHA's premier one-stop shop for occupational chemical information. It compiles information from several government agencies and organizations. Information available on the pages includes chemical identification and physical properties, exposure limits, sampling information, and additional resources.

Analytical Methods

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