This document may not reflect OSHA's respirable silica rule published on March 25, 2016.
For more information on the new rule, see OSHA's Final Rule on Respirable Crystalline Silica Page.
Quartz And Cristobalite In Workplace Atmospheres
OSHA Method ID-142 | 1981, Revised October 2015
DISCLAIMER: These procedures were designed and tested for internal use by OSHA personnel. Mention of any company name or commercial product does not constitute endorsement by OSHA.
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