“Notice. All Activities Monitored By Video Camera.” — Various Department Store Surveillance Signs The adage that a watched pot never boils is false. The boil will occur, regardless of whether someone is observing it. Watching the pot appears to increase the time it takes to boil, especially if that is the only task that the [...]
“Time flies over us but leaves its shadow behind.” — Nathaniel Hawthorne Layers of protection analysis (LOPA) considers enabling conditions as part of the analysis. Enabling conditions account for an aspect of likelihood that if unaccounted for, would overstate the risk of a hazard. There are some organizations, however, that deem many of these enabling [...]
“Beware of little expenses. A small leak will sink a great ship.” — Benjamin Franklin The most common hazard we encounter during a HazOp is a leaking pipe. Not the most severe and not the highest risk. Just the most common. But we always encounter it. Why? Because pipes leak. All pipes, whether or not [...]
“Shallow men believe in luck; wise and strong men in the cause and effect." – Ralph Waldo Emerson In process safety, one important aspect of assessing risk is determining what safeguards are in place to protect against a hazard. Often, we see teams credit human response as a safeguard, sometimes relying on the response as [...]
“I don’t worry about the bullet with my name on it. Can’t do anything about that. It’s the bullet addressed to ‘Occupant’ that I worry about.” — Drew Schmidt I don’t get as much junk mail as I used to. Now, I get junk emails and junk texts. When I do get junk mail, however, [...]
“People give us credit only for what we ourselves believe.” — Karl Gutzkow Several years ago, in a paper and presentation to the Global Congress on Process Safety (GCPS), PSM experts from OSHA observed that while it is common to see a mechanical integrity (MI) program listed as a safeguard in a PHA, this is [...]
“Morning comes whether you set the alarm or not.” — Ursula K. Le Guin Late one evening a few months after we moved into our offices on Cherokee Street, the alarm went off. My home is nearby, and I got there within a couple of minutes to discover that one of the doors had been [...]
“For what it's worth, a good streak doesn't jinx you, and a bad one, unfortunately, does not mean better luck is in store.” — Leonard Mlodinow When someone tells you that they took a calculated risk, they almost certainly are not speaking the truth, to you or to themselves. That’s because there were almost certainly [...]
“I don’t have a particular recommendation other than that we base decisions on as much hard data as possible.” — Dorothy E. Denning The best waiters are the ones who are willing to make recommendations when you ask. Anything but, “Well, everything is good.” Because, admit it, everything is not. And then, when you try [...]
“Prepare and prevent, don’t repair and repent.” – Author Unknown Most safeguards can be easily observed. They might be the mechanical guards that prevent one’s fingers getting ripped off by moving parts, the fences that keep unauthorized people out of a hazardous area, or the alarms that blare through the plant when the reactor reaches [...]
