WAC 296-301-195   Open tanks and vats for mixing and storage of hot or corrosive liquids.  (1) Guardrails shall be provided for open tanks and vats which conform to the requirements of WAC 296-24-750 through296-24-75011 .

     (2) Shutoff valves. Boiling tanks, caustic tanks, and hot liquid containers, so located that the operator cannot see the contents from the floor or working area, shall have emergency shutoff valves controlled from a point not subject to danger of splash. Valves shall conform to the ASME Pressure Vessel Code, section VIII, Unfired Pressure Vessels, 1968.



[Statutory Authority: RCW 49.17.010, [49.17].040 and[49.17].050 . 99-17-094, § 296-301-195, filed 8/17/99, effective 12/1/99; Order 74-19, § 296-301-195, filed 5/6/74.]