The employer must ensure that no employee is exposed to an airborne concentration of MDA in excess of ten parts per billion (10 ppb) as an 8-hour time-weighted average or a STEL of 100 ppb.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 19-01-094, § 296-62-07605, filed 12/18/18, effective 1/18/19. Statutory Authority: Chapter 49.17 RCW. WSR 93-04-111 (Order 92-15), § 296-62-07605, filed 2/3/93, effective 3/15/93.]

PDFWAC 296-62-07605

Permissible exposure limits (PEL).