Hazardous Materials

Liquid Nitrogen freezer incident kills production lead supervisor and production supervisor

At 7:45 p.m. on December 1, 2020, Employee #1, a production lead supervisor, entered the chill/production room. She observed a cloud generating in the immediate area of the freezer tunnel. She investigated the cause of the cloud and was killed by asphyxiation. Approximately one hour later, Employee #2, a production supervisor, entered the chill/production room. […]

Hazards of filling your own LPG cylinders

At 9:00 a.m. on January 31, 2022, an employee who worked as a General Laborer fo r an Industrial Nursery was filling propane cylinders from a bulk propane tank. As the employee was finishing filling a cylinder, he began to remove the filling hose before shutting off the propane. As a result, the gas escaped

Houston BC Pellet Dryer Explosion (Technical BC)

On November 25, 2020, an explosion and fire occurred at an industrial facility in Houston BC. The facility utilizes a system incorporating a large natural gas-fired air heater to dry wood fiber material for the purpose of wood pellet production. The facility had recently been experiencing issues with operating conditions with the dryer system. The

“COLD” BLEVE caught on tape

Back in June of last year (2020), the city of Wenling in China experienced a tragedy that involved a COLD BLEVE of a flammable liquified pressurized gas tanker truck and a subsequent explosion killing 18 people.  We have dashcam footage of the COLD BLEVE and it is “textbook” footage of such an event – we

Technical Analysis: The Risks of Pneumatic vs. Hydrostatic Testing

A catastrophic incident at an engineering facility serves as a definitive case study in the dangers of improper pressure testing. A technician suffered life-altering injuries when a 335-liter (88-gallon) vessel exploded during a pressure test. The root cause was a fundamental failure in hazard control: the company opted to use compressed air (pneumatic testing) instead

How many Flammable Cabinets can I have inside a single control area?

This question causes quite the debate during our audits/assessments! My record is 27 full-size cabinets in a single control area. It was actually inside a single, but large room that had NO fire ratings. And when I began to question the number and load of flammables in the room, you would have thought I shot

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