Most safety professionals are well aware of the many medical evaluations called out in OSHA standards, such as the medical evaluations for workers wearing respirators, emergency responders, etc. But we also have a medical evaluation requirement in Process Safety Management that plays a critical role in our piping Quality Assurance (QA) program. When using either…...
Peeling the onion with your ASME B31.3 pipe examiners! Read More »
I see severe risk-taking regarding “safety assumptions” in process safety in my travels. I guess I am just “old school” and believe that every Pressure Vessel (PV) deserves its very own Pressure Relieving Device (PRD). But in today’s economy, where “costs” can be a driver in decision-making, I have experienced numerous scenarios where a single…...
A single Pressure Relieving Device (PRD) protecting multiple Pressure Vessels Read More »
For my Process Safety followers, here is your Monday Morning “trick question” (which I do not know the answer to)… Scenario: I have an ASME Section VIII Pressure Vessel that will be used in flammable liquid service. The “dip leg(s)” inside the vessel do not extend down to 6″ from the bottom of the vessel…...
R-Stamp weld or ASME B31.3 weld? Read More »
Please note, this is NOT a chemical process safety incident, but the design failures and human errors are directly related to process safety hazards. The design of a new passenger ferry’s engine and inadequate follow-on training for engineering crewmembers led to a 2022 fire aboard a Staten Island Ferry. The fire broke out in the…...
Design Flaw, Lack of Training Caused Fire on Staten Island Ferry Read More »
The U.S. Environmental Protection Agency Office of Inspector General is issuing this fraud alert to highlight an increasingly common phishing scam involving fraudulent EPA Notice of Violation letters. In this scam, a fraudster sends a falsified EPA Notice of Violation letter to a target business and requests that the business respond by phone or email…....
Fraud Alert: Notice of Violation Letter Phishing Scam Read More »
The Chemical Safety Board (CSB) updated its published list of reported chemical release incidents. These are not incidents that the CSB is investigating, these are incidents that were reported to the CSB under their Accidental Release Reporting rules (40 CFR 1604)…. Membership Required You must be a member to access this content.View Membership LevelsAlready a...
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Now you see it-Now you don’t (COLD LPG BLEVE – Brittle Fracture Failure?) Read More »
I love the CSB’s work, but this study could have been said in really simple terms… State Fire Code(s)! I have written dozens of articles explaining the specific requirements of the International Fire Code (IFC), from which most of the 50 states have adopted some “revised” version. Chapter 50 of the IFC (and those states…...
Many thanks to my friend in safety down under, Mr. Peter Hunt, Director and Principal Consultant, Whamcorp Pty Ltd On 25 March 1991, a contractor died after an ammonia tank he was upgrading exploded at the ICI plant. BACKGROUND… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log...
Fatal HW Explosion on Aqua Ammonia Storage Tank Read More »
The Hydrant and PIV must be protected, so we installed two (2) “lazy bollards.” The post are correct, their installation is NOT to code. Had they been installed in the parking lot with a 15” diameter footing and at a height of 4’ AND 4’ away from the PIV, then all would be OK. But…...
The journey of the “lazy bollards” (what we call bollards that just don’t work!) Read More »
In 2012, I discussed the use of sulfur sticks and asked a question: Sulfur sticks and ammonia leaks… are you in compliance when using these leak detection devices? In 2014, IIAR updated its edition of ANSI/IIAR 2 – Standard for Safe Design of Closed-Circuit Ammonia Refrigeration Systems, which PROHIBITS their use when charging is being…...
Manufacturer’s Limitations of Sulphur Sticks Read More »
In almost every PHA I have done since 2000, we find safety critical valves or instrumentation with a built-in bypass around them. I understand the need for a bypass WHEN IT IS FOR MAINTENANCE of the device, but in no sane world do we put a bypass around a safety-critical device so that the process…...
Bypassing safety critical valves Read More »
