“Suffocation is a cruel way to go.” — Arlaina Tibensky I usually think of process safety hazards as being related to fire, explosions, or toxic releases. There is another process hazard, however, doesn’t necessarily depend on any of these. It’s asphyxiation—death due to an inability to get enough oxygen to the body. Asphyxiation is not [...]
“It is with our passions as it is with fire and water; they are good servants but bad masters.” — Aesop A common trope of Hazard Communication training is for the instructor to share an SDS of “dihydrogen oxide” with the class and to review all the dangers of this “hazardous chemical”. Then, in a [...]
“The hardest choices in life aren’t between what’s right and what’s wrong but between what’s right and what’s best.” — Jamie Ford Most of the chemical plants I’ve ever worked in or visited required specific kinds of personal protective equipment (PPE). Usually, hard hats, safety shoes, and safety glasses with side shields were the minimum [...]
“My first customer was a lunatic. My second had a death wish.” — Karl Benz We want to get safer. We invest enormous resources in making the world a safer place. Sometimes, though, it doesn’t seem like we’re making much progress, especially when we’ve just experienced a catastrophic event. Instead, it seems like we just [...]
“It’s very hard for all of us, when we’ve committed ourselves to a particular interpretation, to change our minds.” — Donald Johanson We were recently asked if a steam boiler was a PSM-covered process. The answer seemed obvious. No, steam boilers, themselves, are not covered under the Occupational Safety and Health Administration’s Process Safety Management [...]
“You may hate gravity, but gravity doesn’t care.” — Clayton Christensen In May 1946, a scientist at Los Alamos was demonstrating the criticality of plutonium. The demonstration consisted of lowering the upper hemisphere of a spherical shell around a mass of plutonium. As he lowered it, however, it slipped and completed the spherical shell, causing [...]
“At the end of this day, one shall stand, one shall fall.” — Optimus Prime, Transformers: The Movie I have never been to a process plant that could continue running without electrical power. So, it is not uncommon to see a plant with two separate electrical feeds, each with their own transformers. On most days, [...]
“With a purposeful grimace and a terrible sound, he pulls the spitting high tension wires down.” — Buck Dharma, Blue Öyster Cult The preferred design of a safety function is one that deenergizes to trip. That is, a function that goes to the safe state when all sources of energy have been removed. The probability [...]
“Neither snow, nor rain, nor heat, nor gloom of night stays these courageous couriers from the swift completion of their appointed rounds.” — Herodotus In 1912, one of the architects working on what is now known as the James A. Farley Building at the corner of Eighth Avenue and 33rd Street in Manhattan convinced the [...]
“Simplicity is prerequisite for reliability.” — Edsger Dijkstra For most of my life, I have struggled to keep down to a healthy weight. It didn’t help when someone told me, “Losing weight is simple. Eat less.” When I protested, they replied, “I said it was simple. I didn’t say it was easy.” The safest plant [...]
