HONOLULU — The Honolulu Fire Department provided information used by the U.S. Chemical Safety Board to draw up a safety bulletin warning of the hazards of conducting hot work in a variety of industries.

The information concerned an explosion at Campbell Industrial Park in 2008. A workman welding a 9,500-gallon waste oil storage tank was killed when it blew up.
Hot work is defined as any activity that involves welding, burning, cutting, brazing, grinding, soldering or similar spark-producing operations that can ignite a flammable atmosphere.
The CSB began investigating hot work hazards following an explosion that occurred July 29, 2008, at the Packaging Corporation of America corrugated cardboard mill in Tomahawk, Wis., that killed three maintenance workers.