Bryan Haywood

A FREE TOOL/Resource every safety pro should have in their toolbox – CGA Handbook of Compressed Gases

/ Emergency Response, Hazardous Materials /

Did you know? The Compressed Gas Association’s Handbook of Compressed Gases is now available online — completely FREE and publicly accessible. Access it here:  https://handbook.cganet.com For decades, the Handbook has served as a trusted reference for professionals across the industrial, medical, food, beverage, specialty gas, and hydrogen sectors.  Now, CGA has transformed this essential resource into…...

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Line Break gone bad (H2S – pulling blind)

/ Chemical Process Safety (PSM/RMP), Hazardous Materials, OSHA Compliance, Respiratory Protection /

Shenyang Petrochemical Company “The Big Poisoning Accident“ The gas sub-device of Shenyang Paraffin Chemical Company suffered a poisoning accident during the maintenance and construction process, resulting in three (3) Deaths. The immediate causes of the accident were: When the operator carried out the blind plate swapping operation at the pump relief blind plate, the operator…...

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History of Chemical Accidents in China during the month of May

/ Chemical Process Safety (PSM/RMP), Hazardous Materials /

This is an interesting “press release” from the Chinese Government regarding the country’s accident history in May. History: Hazardous chemical accidents in May Petrochemicals… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...

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Visual Quiz – Incidental Release or one requiring an Emergency Response

/ Chemical Process Safety (PSM/RMP), Emergency Response, Hazardous Materials, OSHA Compliance /

I get it, it’s a 19-second video, and it will probably stir more questions than responses, but this topic is one that needs MUCH discussion. I have made this page FREE for anyone who wishes to chime in. A couple of items to consider: So what say you? We can discuss this in the comments…...

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Gemini+ analysis of my Double Block and Bleed Isolation and Line & Equipment Opening ppt

/ Chemical Process Safety (PSM/RMP), Hazardous Materials, Lockout Tagout, OSHA Compliance, Process Safety Material /

Establishing a Double Block and Bleed (DB&B) positive isolation is a critical safety protocol when preparing piping and equipment for opening, especially when dealing with Extremely Hazardous Substances (EHS). This process ensures that hazardous materials (HAZMAT) are effectively evacuated and isolated to protect workers from accidental releases. Members can download my .ppt file at bottom…...

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The scienece behind “Scrubbing Cl2 in NaOH”

/ Chemical Process Safety (PSM/RMP), Hazardous Materials, OSHA Compliance /

As with my NH3 article, I wanted to verify and document the same scenario for scrubbing 1 pound of Cl2 with 50% Sodium Hydroxide (NaOH). Here is what Gemini+ had to say… When Chlorine (Cl2) gas is safely scrubbed with Sodium Hydroxide (NaOH), the reaction produces sodium hypochlorite (bleach), sodium chloride (salt), and water. Bottom…...

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The scienece behind “Scrubbing NH3 in water”

/ Chemical Process Safety (PSM/RMP), Emergency Response, Hazardous Materials /

Throughout my career, I have been taught that to safely “scrub” 1 pound of NH3, 1 gallon of water is required. I have firsthand experience in this ratio working. So I decided to ask Google Gemini+ to explain this ratio. Looking back at IIAR-2, when we sized a Diffusion Tank for PSV discharge(s), it was…...

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Why we want to ALWAYS Hydrostatically Test our chemical hoses vs. Pneumatically Testing

/ Chemical Process Safety (PSM/RMP), Emergency Response, Hazardous Materials, OSHA Compliance /

As I have written many times, our bulk chemical transfer hoses MUST be part of an Inspection and Testing Program. These tests follow the same logic as pressure testing piping, and Hydrostatic Testing is far safer than pneumatic testing. So I asked Google Gemini+ to show me the difference in failure energies to demonstrate this…...

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Pressure Wave generated by a 1,000 Liter (264 gallons) N2 Dewar catastrophically failing

/ Hazardous Materials, OSHA Compliance /

To determine the internal static overpressure generated by the catastrophic failure of a liquid Nitrogen (LN2) dewar, we look at the physics of a Boiling Liquid Expanding Vapor Explosion (BLEVE) and the resulting rapid phase transition…. Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...

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Pressure Wave generated by a 1-ton Cl2 cylinder catastrophically failing (WCS for Cl2 1-ton cylinder inside a Cl2 building)

/ Chemical Process Safety (PSM/RMP), Hazardous Materials, OSHA Compliance /

So I asked Google Gemni + to calculate the pressure wave in a room that is 40′ X 40′ X 20′ tall with the catastrophic failure of a 1-ton chlorine cylinder. In a 32,000 ft3 room, we must determine the volume of gas released during the “instantaneous flash” and the resulting internal static overpressure…. Membership...

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I have created a “cheat sheet” for safe distances during pneumatic pressure testing (ASME PCC-2, Mandatory Appendix 501-III)

/ Chemical Process Safety (PSM/RMP), Hazardous Materials, OSHA Compliance /

DISCLAIMER: This is a “cheat sheet” for safety professionals to get a general idea of the “safe distances.” ALWAYS refer to ASME PCC-2, Mandatory Appendix 501-III) for the exact distance. Just understand, ALL pneumatic pressure testing REQUIRES a “safe distance”. According to ASME PCC-2, Mandatory Appendix 501-III, determining safe distances for pressure testing—specifically, pneumatic testing—requires…...

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Why I rarely allow “Release in enclosed space, in direct contact with outside air” to be credited in my WCS’s (NH3)

/ Chemical Process Safety (PSM/RMP) /

So I asked Google Gemni + to calculate the pressure wave in a room that is 40′ X 40′ X 20′ tall with a 5,000-gallon pressure vessel 85% full of liquid NH3, and it catastrophically fails. How much of a pressure wave will this event create in psig? I promise you this… No Engine Room…...

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