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1926.1153 Table 1—Specified Exposure Control Methods When Working With Materials Containing Crystalline Silica Equipment/task Engineering and work practice control methods Required respiratory protection and minimum assigned protection factor (APF) ≤ 4 hours/ shift >4 hours/ shift (vii) Handheld and stand-mounted
TABLE 1: SPECIFIED EXPOSURE CONTROL METHODS WHEN WORKING WITH MATERIALS CONTAINING CRYSTALLINE SILICA† Equipment/Task Engineering and Work Practice Control Methods require? Required Respiratory Protection and Minimum Assigned Protection Factor (APF) What does full and proper implementation ≤ 4 hours /shift > 4 hours /shift
Working With Materials Containing Crystalline Silica Adopted from the Occupational Safety and Health Administration (OSHA) Respirable Crystalline Silica Standard Page
protection described in Table 1: (1) Permissible exposure limit (PEL). The employer shall ensure that no employee is exposed to an airborne concentration of respirable crystalline silica in excess of 50 mg/m3, calculated as an 8-hour TWA. (2) Exposure assessment—(i) General. The employer shall assess the exposure of each employee who is or may
This document provided as a courtesy by Sotera Consulting, LLC Please contact us with questions www.soteraconsulting.com (612)597-6463 Heavy equipment and utility vehicles used to abrade or fracture silica-containing materials (e.g., hoe-ramming, rock ripping) or used during demolition activities involving silica-containing materials 1.
Employers can either use a control method laid out in Table 1 of the construction standard, or they can measure workers’ exposure to silica and independently decide which dust controls work best to limit exposures in their workplaces to the permissible exposure limit (PEL). What is Table 1?
Small Entity Compliance Guide for the Respirable Crystalline Silica Standard for Construction; 2) OSHAs Frequently Asked Questions ("FAQs") for the Construction Industry; 3) silica standards Table 1; 4) manufacturer specifications; and 5) craft worker/contractor input based on experience in the field.
