Frozen food production can be hazardous to workers. Although nitrogen and carbon dioxide can quickly freeze food products if released into the work area, they can displace oxygen in the air, which can be fatal to workers. Fundamental safety and operational precautions, such as systems to prevent nitrogen and carbon dioxide from entering and accumulating […]
One of the top questions I get in my process safety circles is… Do we have to pressure test/leak test piping that has been opened/modified before we re-introduce the HHC/EHS to the piping? I turn to one of my favorite sources for RAGAGEPs, NFPA, and one of the best NFPA codes is NFPA 58, which
Processes that handle Liquified Pressurized Gases are required to have Hydrostatic Relief Valves on liquid piping where the liquid can be trapped. Much like vapor/gas phase Pressure Safety Valves, it is frowned upon when we have an intervening valve under the PSV. However, many codes today ALLOW us to install a 3-way valve below the
Last week I posted the investigation findings from a triple fatality event near my hometown that was caused by a 70+-year-old LPG cylinder that was 33 years PAST its recertification/requalification date AND was overfilled. Now the BSEE has shared a SAFETY ALERT regarding a Nitrogen Compressed Gas cylinder that catastrophically failed injuring three (3) workers
The explosion at an auto repair shop in Hillsboro, OH that claimed the lives of three (3) workers, aged 19, 33, and 47 in 2023 has been determined to have been caused by a rupture to an LPG cylinder that had been overfilled and past its requalification date by 33 years. I would also like
The Ohio Department of Commerce, Division of State Fire Marshal (SFM) is in the process of updating all chapters of Ohio Administrative Code sections 1301:7-7-01 – 1301:7-7-80, collectively known as the Ohio Fire Code (OFC). When the update process is complete, the new 2025 OFC will be adopted and is currently anticipated to take effect in
A video I posted over two years ago has come full circle. A citizen (some may call him homeless) was allowed to sit (and smoke) within 20′ of a gasoline tanker unloading operation at a gas station. His actions may not have been his sole demise, as we can see in the video evidence that
Victor Dearman Jr. CIRO, CRST Social media can be a great thing, especially for getting the word out about your services/offerings and showcasing through pictures and videos the work you absolutely should be proud of. Or, should you be proud of it? Yep, this won’t be popular but needs to be said. Engineers, service technicians,
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
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.
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
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,
