May 2020 CCPS Process Safety Beacon (Permitted Work - A Special Cause)

"On November 9, 2010, in upstate New York, USA, a contractor was welding new support brackets on a tank for water-based polymer slurry. The area outside the tank had been monitored for flammables and approved for hot work, but the inside of the tank was not tested. An explosion occurred; one person was killed and another one received first-degree burns and other minor injuries..."

https://www.aiche.org/sites/default/files/202005beaconenglish_0.pdf?utm_source=Informz%20Email&utm_medium=Informz%20Email&utm_campaign=Informz&_zs=SLp2X&_zl=t9L52

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