Hazardous Materials

Bypassed Safety Device Deficiencies (BSEE)

A team of auditors identified a potential risk associated with bypassed safety devices and inconsistent interpretation of regulations after multiple incidents of noncompliance were issued, associated with the operator’s failure to comply with 30 CFR 250.869 and 30 CFR 250.870 in 2025. The BSEE Performance-Based Risk Inspection (PBRI) covered five assets (all production platforms) in […]

Fatigue Cracking of ¾-Inch Pipe Nipple Results in Gas Release (BSEE)

The Bureau of Safety and Environmental Enforcement (BSEE) has investigated a recent offshore gas release incident resulting from the failure of a ¾-inch pipe nipple connected to a compressor suction scrubber (Figure 1). The failure led to an immediateplatform shut-in and a full muster of personnel onboard. The released gas posed a significant safety risk,

Consider Human Error and Domino Effects (EPSC Learning Sheet July 2025)

At an Ethylene unit in the Czech Republic (2015), when swapping over cooling water supply lines during a flowmeter calibration, the operator made a simple mistake. While intending to open valve #3 on the spare supply line, he closed the identical valve #2 instead, shutting off all cooling water to the Light Ends columns. A

PSV inlet pipe failure (6# NH3 release inside Machinery Room)

A piping fitting failed, resulting in the release of approximately 5 pounds of ammonia (NH3) in the machinery room. The nipple (fitting) between the oil separator and its relief valve cracked and failed to hold ammonia in the piping, resulting in the activation of the exhaust ventilation system. Fittings made of certain materials are incompatible

Another “Torque Matters” event (16-pound NH3 Release from Oil Separator)

In an ammonia refrigeration system, ammonia in a gas state is compressed from the compressor to high-pressure, high-temperature ammonia gas. The compressed gas heats as its pressurised. The hot gas enters an oil separator, where the ammonia gas and compressor oil is separated so that oil is not carried over with the ammonia gas to

E-Stops: Process Safety vs Machine Safety

I see this all the time… E-stops on Hazardous Materials process located at the point of the expected/intended failure point, such as a loading/unloading station. Many safety pros have experience with E-stops as a safety device for machinery/equipment, in which the E-stop is located at the point of potential entrapment inside the machine/equipment. Even ANSI

What does AI say about the old saying, “three threads showing” for nuts and bolts on our process?

I have this debate regularly with facilities where I find “short-threading” on their flanges/manways, etc. This phrase is from an old pipe-fitters manual, and it’s what I was taught in 1993 when I entered the chemical process industry and PSM/RMP covered processes. Today, “full engagement” is defined at the bolt/nut being FLUSH. So I asked

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