This fatal incident is another example of workers unknowingly understanding “torque values” when putting the primary containment system into service…. Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
This is an EXCELLENT document to help us understand the risks associated with pressure testing Carbon Dioxide (CO2) piping. It compiles all my previous posts on the need for and methods of pressure/leak testing our hazardous materials piping systems. Many people are skeptical of a redneck from Western KY on these matters, so I thought…...
This case is a perfect example of why:… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
A welder died when struck by a piece of a hydraulic tank that came apart after being pressurized with air and water to check for leaks. The welder had removed the tank the previous day to repair a leak. On the day of the incident, the victim filled the tank with water and used an…...
Polish Authorities have determined that the heat pump explosion that killed two people last year was caused by using oxygen to carry out a leak test. The heat pump explosion on August 20, 2024, killed two people: an engineer (30) who was servicing the unit and the property owner (45). They were said to have…...
WORKER BADLY INJURED: FIFE FIRM BACK IN DOCK AND FINED A worker sustained horrific injuries after being struck by highly pressurised water during hydraulic testing on machinery. His employer has been fined £161,250 ($218,460) for breaching health and safety law. A testing booth should have remained automatically locked when it presented a danger to employees…...
Employee #1, a welder, was inside a double-walled, approximately 5.5 ft in diameter steel tank to perform leak tests. A contractor had installed new stainless steel piping to the 1,000-gal blending tank, and initial use of the tank revealed some leakage where the new pipe entered the bottom of the tank. To perform the leak…...
On March 6, 2018, a 49-year-old pipefitter was hit in the chest by a pressurized 12-inch diameter polyvinyl chloride (PVC) pipe during a hydrostatic pressure test of a fire suppression system. The sudden pipe movement was attributed to a pipe joint connection failure in a buried section of the pipeline. The failure was due to…...
Natural gas was released into the basement of the Realty Building and caused an explosion in Youngstown, Ohio, after a member of a scrap removal crew cut into a steel pipeline. Although the cut pipeline had not been marked or otherwise identified as containing natural gas, it did contain gas, pressurized at about 38 psig,…...
This is not only about a failed pressure test gone bad, but it is an excellent example of how “contributing factors” play a role in accidents. Deviating from the test plan, changing the time frame in which the test is to be conducted due to a noise ordinance, etc., played a role in this multimillion-dollar…...
WorkSafe BC (British Columbia) is proposing some thoughtful improvements to its Part 6, Substance Specific Requirements, sections 6.116 to 6.132 — Toxic Process Gases. The hazardous materials that this effort focuses on are: This standard reads much like OSHA’s PSM standard; however, this standard has a bit more specific requirements. Some Highlights of the proposed…...
A liquid ammonia NH3 tank failed catastrophically at the Azotas fertilizer plant in Lithuania in 1989. During maintenance on the boil-off system, operators accidentally created a backflow of liquid warm NH3 to the tank. Potentially after a “role-over”, NH3 evaporated quickly, creating pressure that could not berelieved by the PSV. The tank was lifted, releasing…...
