N2 and CO kill contractor maintenance worker and hospitalize another
At 11:30 a.m. on October 15, 2021, Employees #1 and #2, both maintenance contractor employees, were assigned to install a pressure safety valve (PSV) on a flare header in a methylene diphenyl diisocyanate (MDI) unit when they were exposed to nitrogen and carbon monoxide. The installation procedure requires supplied air respirators. The employees were staging […]
