Definition and Citations:
This term refers to the maximum allowable airborne concentration of a substance in a work area. REL can be expressed either as a maximum limit or as a time-weighted average.
Your Free Online Legal Dictionary • Featuring Black’s Law Dictionary, 2nd Ed.
This term refers to the maximum allowable airborne concentration of a substance in a work area. REL can be expressed either as a maximum limit or as a time-weighted average.