Permissible exposure limit monitoring, employer

Frequency, (i) If the monitoring required by this section reveals employee exposures to be below the permissible exposure limit, the employer shall repeat these measurements at least quarterly. 

Termination of monitoring, (i) If the periodic monitoring required by paragraph (f)(3) of this section reveals that employee exposures, as indicated by statistically reliable measurements, are below the permissible exposure limit and excursion limit the employer may discontinue monitoring for those employees whose exposures are represented by such monitoring. 

Accuracy of measurement. The employer shall use a method of monitoring and analysis that has an accuracy of not less than 25 percent ( 25 percent), with a confidence level of 95 percent, for airborne concentrations of cadmium at or above the action level and the permissible exposure limit. 

The OSHA Lead Standard (29 CFR 1910.1025, 1987) established two exposure limits, both applicable over an 8-hour time-weighted average, an action level of 30 pg/m= and a permissible exposure limit (PEL) of 50 pg/mf If an employee s exposure is at or above the action level, the standard requires the employer to perform exposure monitoring, medical surveillance, training, and remove workers with blood lead concentrations at or above 50 pg/dl of blood. If exposure exceeds the PEL, the employer must do the following. 

Exposure Monitoring — Your employer must measrae yora exposure to airborne MC. To help keep you from being overexposed, OSH A has set exposure hmits for MC. These exposrae limits are (1) 25 ppm as an 8-hour Time Weighted Average Permissible Exposrae Limit (TWA/PEL), or 125 ppm as a 15-minute Short Term Exposiae Limit (STEL). 

Explain the requirements of OSHA s Cr(VI) standard. OSHA reqmres employers to limit employee exposure to Cr(VI) to a specified permissible limit. OSHA also requires the employer to perform periodic monitoring, provide PPE, make medical examinations available to employees, train employees, observe proper housekeeping and hygiene practices, and keep exposure and medical records. 

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