I have written dozens of articles around these “safety myths”, but Jonathan Zimmerman and I were not selected to present this at ASSP several years ago so I thought I would share it as a series here. These are topics that I still get challenged on in 2024/2025 and often I am unable to convince…...
LOTO Safety Myth #1 Read More »
The recent news from Boeing’s CEO regarding their cultural challenges reminded me of a discussion I had with one of my favorite plant managers, Dale Fannin, in 1996. It was an uncomfortable discussion, as I had my a_s handed to me, regarding all my “cheerleading” rather than being a safety leader. Dale, as were two…...
[My] Safety Thought of the Week… Culture of Safety Read More »
A soft drink manufacturer had a 3-ton capacity carbon dioxide (CO2) receiver tank at the plant. The tank contained 2000 pounds on the day of the explosion. The establishment was evacuated due to flooding river waters in the area. The plant was secured and evacuated. No employees were at the workplace. Suddenly, the storage tank…...
CO2 Tank launches 100′ off-site into a home (Flood Waters) Read More »
On September 19, 2002, Employee #1 was painting one (1) of six (6) tanks containing carbon dioxide when three (3) of them suddenly exploded. He was killed. The tanks were originally built as railroad tank cars for liquefied petroleum gas and they were not designed to store carbon dioxide…. Membership Required You must be a...
At 7:00 a.m. on October 31, 2022, an employee, 36, was brazing a copper line in an electrical equipment room that was equipped with a carbon dioxide fire extinguishing system. The fire extinguishing system activated, discharging and flooding the room with carbon dioxide. The employee was unable to escape the room and was overcome and…...
OSHA settles “Worker overcome by carbon dioxide fumes at LAX dies” Read More »
In response to a report of a fatality at Respondent’s place of business, Complainant initiated an inspection that concluded with Complainant issuing a four-item Citation and Notification of Penalty. For the most part, the specifics of the alleged violations—which include: are not particularly complicated. The wrinkle in this case is whether the workers identified by…...
OSHRC establishes who is an “employee” vs. “independent contractor” Read More »
“Why did they have a Rupture Disc and a Relief Valve together?” As I alluded to in my post regarding CBS’s update, this arrangement is fairly common but comes with some very SPECIFIC requirements. These requirements can be found in: But the top four (4) requirements, we as safety engineers should be looking for in…...
One of the questions I got after the CSB Update on the PV failure in KY was… Read More »
I have shared the ASME and NBIC “code” requirements for these arrangements and it has already stirred a number of debates/questions; of which the API has offered some excellent guidance on this design. (emphasis by me)… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
API 520, Part II offers more guidance on “intervening valves” in a PRD path Read More »
It has grown tiresome, but it remains a teachable moment, to debate “engineers” who want part of ASME/NBIC to be the gospel and other parts not so much. The ammonia refrigeration industry just can’t seem to grasp the critical need in their “Common PRV Header Design” v.s. having more “holes in the roof” (as they…...
The National Board on “intervening valves” in the PRV path (Car Seal) Read More »
Recently I was asked if “torquing” threaded pipe is required by code. I answered the inquiry by referring the client to ASME B1.20.1-2013, which states: 1.4 Sealing (NPT and NPSC Only)…1.4.3 Tightening Torque.Due to application-specific variables such as materials, wall thickness, operating pressures, etc., no guidance is given in this Standard regarding joint-tightening torque. However,…...
Threaded Piping Connections and Hazardous Materials Read More »
Another incident where the lack of respect for static electricity and flammable atmospheres results in severe injuries. A Teflon bristle brush generates a lot of static electricity; coupled with the low flashpoint of Naptha (73F) and we have a serious hazard. At 5:30 a.m. on February 24, 2020, an employee, 42, was scrubbing interior surfaces…...
FACT: Most flammable liquid vapors have a Minimum Ignition Energy (MIE) of less than 1 millijoule (mJ). Most of us do not even feel static which is less than 15 mJ. So the amount of energy necessary to ignite most flammable vapor atmospheres is not even observable by humans. At 6:15 p.m. on October 30,…...
Switch Loading + Static Electricity = Fatal Burns Read More »
