OSHA Compliance

Pressure Testing gone bad (Sprinkler Pipe)

On March 9, 2009, Employee #1 was testing a newly-installed 6 in. steel fire protection water main. When it was pressurized with air, a 6 in. pipe cap flew off the end of the pipe and struck Employee #1’s forehead, killing him. Violations/Penalties Serious Total Initial Violations 5 5 Current Violations 3 3 Initial Penalty…...

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Failed pressure test ends in worker being blinded

On May 4, 2013, Employee #1, a 40-year-old male construction worker was blinded by a test plug that burst while conducting a leak test on a new 4″ diameter sewer line which was made of cast iron. Employee #1 said that he inserted a 2″ diameter by 2′ long test plug into the new cast…...

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Human Error (mixed chemicals) at Semiconductor Facility leads to fatality

Employee #1 was a maintenance technician at a company that performs epitaxial processes for semiconductor manufacturing. He reported to work in the fabrication area and was briefed by a coworker, also a maintenance technician, about the day’s projects. After a few minutes, other workers began to smell a strong chemical odor, and some saw a…...

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Hazards of “weld-penetration” testing (6 employees hospitalized)

At approximately 7:30 a.m. on November 2, 2007, a technician in building Number II was conducting weld-penetration tests with a chemical solution containing 95-percent ethyl nitric acid (70-percent concentration). An old container of the solution in a storage can that had been stored on a bottom shelf fell and broke when the lower shelf in…...

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WRONG CHEMICAL – WRONG TANK (Tank was incorrectly labeled)

At approximately 9:30 a.m. on April 24, 2019, an employee was receiving a chemical. The vendor connected the nitric acid to the chlorine tank. Because it was mislabeled, it caused a reaction with a cloud that affected seven (7) other employees…. Membership Required You must be a member to access this content.View Membership LevelsAlready a...

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BSEE Identifies Compressed Gas Cylinder Hazards DuringRisk-Based Inspections

The Bureau of Safety and Environmental Enforcement’s Gulf of America Region identified a potential risk involving compressed gas cylinders across the Outer Continental Shelf in 2024 and 2025. During this period, multiple explosions were reported to the bureau and were linked to cylinder failures. Several of the explosions were severe, causing injuries and damage to…...

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Tissue manufacturer fined after worker injured hand unblocking machine

NOTE: OSHA would allow the “minor servicing exception” in this scenario, although the UK HSE does not. A tissue manufacturing company has been fined after an employee, 24, was seriously injured while clearing a machine blockage at its factory. During the manufacturing process, a tissue blockage occurred in the rollers of the machine, and the…...

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Sizing emergency venting for atmospheric storage tanks

With this week’s event in Japan, where the roofs of the flammable liquid storage tanks were blown off, I shared OSHA’s “emergency venting” requirements to explain why the roofs were off the tanks, which sparked a lot of sidebar discussions. Sizing these emergency venting options is quite easy, as I explain in this article with…...

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Another great example of correlation ≠ causation

My friend and one hell of a fine process safety guru in NH3 refrigeration, Brian Chapin, is always sharing this stuff with me. This is another great example of how correlation ≠ does not cause causation. Of course, this is the extreme, but I will bet many of us have seen correlation turn into causation…...

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Words matter in process safety… LEL% vs MEC

Yes, both terms essentially mean the same thing, but they refer to very different hazardous atmospheres. LEL, or Lower Explosive Limit, applies to gases and Vapors. MEC, which is Minimum Explosive Concentration, deals with Combustible Dusts. Here are some other differences:… Membership Required You must be a member to access this content.View Membership LevelsAlready a...

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Does this look safe? (OSHA Case File w/LPG Fire)

I used AI, specifically Gemini Plus and Super Grok, to create this image from an OSHA Case File, and I was impressed. Now the image is going to be shocking, but this is a very good depiction of what was described in the case file. And I’ll bet a burger and a beer that this…...

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