PDFWAC 296-24-71519
Mercury.
In confined spaces or indoors, you must perform welding or cutting operations involving metals coated with mercury-bearing materials, including paint, using local exhaust ventilation or airline respirators unless atmospheric tests under the most adverse conditions show that employee exposure is within the acceptable concentrations specified by chapter 296-841 WAC. You must perform such operations, when done outdoors, using respirators certified for this purpose by NIOSH under 24 C.F.R. Part 84.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-71519, filed 12/1/15, effective 1/5/16; WSR 05-03-093, § 296-24-71519, filed 1/18/05, effective 3/1/05. Statutory Authority: RCW 49.17.010, [49.17].040 and [49.17].050. WSR 99-10-071, § 296-24-71519, filed 5/4/99, effective 9/1/99. Statutory Authority: Chapter 49.17 RCW. WSR 94-15-096 (Order 94-07), § 296-24-71519, filed 7/20/94, effective 9/20/94; Order 73-5, § 296-24-71519, filed 5/9/73 and Order 73-4, § 296-24-71519, filed 5/7/73.]