Chemical Process Safety (PSM/RMP)

Cascading Failures vs Failing Safely

In the world of Human Factors, we have a saying, “failing safely,” which translates into… all humans make mistakes – it’s our job to identify those error/mistake traps and design work to lessen those error opportunities.  In Process Safety we used to use the phrase “cascading failures”, which is the opposite of “failing safely.”  In […]

Attention to detail needed with Respiratory Protection and Cl2 exposure

At 11:00 a.m. on May 23, 2019, an employee removed a regulator from a chlorine gas cylinder to perform yearly maintenance and repacking. When the employee attempted the close the shutoff valve, the valve malfunctioned and stopped turning while still slightly open without the employee’s knowledge. When the employee removed the regulator, chlorine gas escaped.

Lack of Maintenance to Uninterruptible Power Supply Systems Leads to Failures (BSEE Alert)

Uninterruptible Power Supply (UPS) is a pretty common backup power supply in industrial settings where “power failure” can lead to the loss of control systems, emergencyshutdown systems, and emergency mitigation systems.  But like ALL SAFEGUARDS we take credit for in our Hazard Analyzes, these UPS must be in our mechanical integrity program for testing/validation regularly

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