Text For Citation: 01 Item/Group: 005C Hazard:

29 CFR 1910.134(d)(3)(i)(B)(1): The employer did not select a respirator for employee use that maintained the employee's exposure to the hazardous substance, when measured outside the respirator, at or below the maximum use concentration: a. This violation occurred on August 22, 2013, in the fabrication shop, where an employee who was exposed to respirable dust containing 20% crystalline silica (quartz) at an airborne concentration of 17 milligrams per cubic meter of air, as an 8-hour time-weighted average, was provided with a half mask air-purifying respirator that had a maximum use concentration of 4.55 milligrams per cubic meter of air. b. This violation occurred on August 22, 2013, in the fabrication shop, where an employee who was exposed to respirable dust containing 17% crystalline silica (quartz) at an airborne concentration of 12 milligrams per cubic meter of air, as an 8-hour time-weighted average, was provided with a half mask air-purifying respirator that had a maximum use concentration of 5.26 milligrams per cubic meter of air.