Chemical Process Safety (PSM/RMP)

Difference in PSI Safe Upper/Lower [DESIGN] Limits and SOPs Operating Limits

Have you ever wondered why PSM and RMP require an employer to establish safe upper and lower limits for such items as temperatures, pressures, flows, or compositions in their Process Safety Information and evaluate the consequences of deviating from these limits, including those affecting the safety and health of employees?  And then, in the Operating

Questions and Answers from PSM Webinar Sept. 29, 2015 (OSHA’s Directorate of Enforcement)

Questions and Answers from PSM Webinar Sept. 29, 2015.  Answers provided by Jeff Wanko, PE, CSP, and Safety Engineer in OSHA’s Directorate of Enforcement, Office of Chemical Process Safety in Washington, D.C.   Q. Do you have to test the safety equipment annually? A. Under paragraph (j), mechanical integrity, OSHA requires that employers inspect and test process equipment

Learnings from a catastrophic release of 24,000 pounds of methyl mercaptan

There are so many learnings in this incident that every single business should analyze these against their current safety systems.  Many of the issues that the Chemical Safety Board (CSB) investigation investigation identified are present in many other processing units handling Highly Hazardous Chemicals and Extremely Hazardous Substances.  This is a breakdown of the items

MOCs and Technology

Each week I get into some really deep discussion regarding Process Safety and it seems that many of these discussions involve changes and whether the change needs an MOC.  So I thought it would be a good discussion point for us here to toss around.  This scenario actually comes out of a 3-year audit I

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