Bryan Haywood

Do the quantities of two separate vessels that are interconnected with a closed valve need to be aggregated for the worst-case release scenario analysis?

Pursuant to the risk management program regulations, facilities must perform an offsite consequence analysis for the worst-case release scenario. Do the quantities of two separate vessels that are interconnected with a closed valve need to be aggregated for the worst-case release scenario analysis? 

Are mechanical controls such as alarms considered administrative controls and therefore limit the worst-case release quantity?

For the purpose of analyzing the worst-case release scenario required as part of the hazard assessment at 40 CFR Part 68, Subpart B, the worst-case release quantity is identified as the greatest amount held in a single vessel or pipe, taking into account administrative controls that limit the maximum quantity (40 CFR §68.25(b)). Are mechanical

The tale of two LOTOs – worlds apart (Compressed Air)

If you have equipment that uses compressed air (CA) as an energy source, you will understand my frustrations with how poorly we manage this hazardous energy source.  Typically, compressed air is provided via a plant-wide header system with drops for machine/equipment.  These drops will then use a hose to deliver the compressed air to the

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