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WAC 296-850-110

Permissible exposure limits.

(1) Time-weighted average (TWA) PEL. The employer must ensure that no employee is exposed to an airborne concentration of beryllium in excess of 0.2 µg/m³ calculated as an 8-hour TWA.
(2) Short-term exposure limit (STEL). The employer must ensure that no employee is exposed to an airborne concentration of beryllium in excess of 2.0 µg/m³ as determined over a sampling period of fifteen minutes.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060, and chapter 49.17 RCW. WSR 18-17-156, § 296-850-110, filed 8/21/18, effective 12/12/18.]
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