Some safety professionals think the stories of workers dying in air-supplied respirators hooked into an inert gas supply are “urban safety myths”. Granted, these incidents are rare, but they do happen and they almost always result in a fatality. Here are some of the OSHA Case files from such incidents…… Membership Required You must be...
At approximately 3:15 pm on may 9, 1986, employees started to charge the number 1 line carbo-cooler, using a cylinder containing 150 pounds of anhydrous ammonia at 129 psi (room temperature). Employee #1, in an effort to speed the charging process, was adding water at 132 degrees to the ammonia cylinder (to raise the internal…...
A hole was being drilled in the plant’s No. 8 Generator in order to remove a bore plug on a rotor undergoing maintenance. As workers were drilling the first hole, flames emanated from the drilled hole and injured a worker. A Ministry of Labour investigation found that the flames resulted from the release of hydrogen from pressurized…...
I read a lot of OSHA case files and sometimes I find the narrative very interesting. This one, I found to be darn near impossible to have occurred as written… At approximately 2:30 p.m. Employee #1’s coworker, a refrigeration technician, was troubleshooting a compressor shutdown and opened a valve which vented anhydrous ammonia into Engine Room #3…....
At 3:10 p.m. on February 7, 2017, an employee was making preparations to replace the relief valve of a 1,000 gallon ammonia (NH3) nurse tank. The incident investigation reported that the tank was empty of liquid NH3. However, it contained approximately 80 psi of vapor pressure. The employee set up a 30 gallon drum that…...
At 7:15 a.m. on May 10, 2017, vapor phase anhydrous ammonia was released in an uncontrolled manner from a high-pressure line. The release took place when an employee drilled a 5/32-inch diameter pilot hole into a 3-inch schedule 40 seamless steel pipe containing anhydrous ammonia. The pilot hole was drilled as a starter hole for…...
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So the permit says I have to have on a harness with a “lifeline” attached and the other end attached to a fixed point outside the PRCS, so here’s how I feel about my “lifeline”…… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
OSHA’s Slings Standard (29 CFR 1910.184) specifies several paperwork requirements, depending on the type of sling paragraph (e) of the Standard covers alloy steel chain slings; paragraph (f) covers wire rope slings; paragraph (g) covers metal mesh slings; paragraph (h) covers natural and synthetic fiber-rope slings; and paragraph (i) covers synthetic web slings) The purpose of each of…...
To make this simple, I like to use this slide from my Process Safety course for a visual aid in how we should be “looking at process safety”… It also does a decent job of outlining what a HCA could look like. More on HCA’s later…… Membership Required You must be a member to access...
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This is a highlighted version of WA-OSHA’s DRAFT of their proposed PSM standard for refineries. I have highlighted those areas that are “new” as compared to OSHA’s PSM Standard (1910.119)…. Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
