About Mike Schmidt

With a career in the CPI that began in 1977 with Union Carbide, Mike was profoundly impacted by the 1984 tragedy in Bhopal and has been working on process safety ever since.

Safe Limits for Oxygen Exposure: Why 19.5% to 23.5%?

“Love is like oxygen. You get too much, you get too high; not enough and you’re gonna die.”  — Andy Scott, of Sweet OSHA standards define safe lower and upper limits to the concentration of oxygen in the atmosphere to which workers are exposed. The limits are a minimum of 19.5% and a maximum of [...]

By |2023-12-07T09:20:33-06:00December 7th, 2023|Chemicals, Process Safety, Workplace Safety|Comments Off on Safe Limits for Oxygen Exposure: Why 19.5% to 23.5%?

Pyrophoria: Spontaneous Combustion

“Do I mind if you smoke? I don’t mind if you burst into flames. Just don’t light that cigarette.”  — Anonymous, derived from Sarah Bernhardt’s comment to Oscar Wilde Spontaneous human combustion (SHC) is an idea first proposed by Paul Rolli in 1746. It seized the imagination of a gullible public. Since then, there have [...]

By |2023-11-30T11:02:04-06:00November 30th, 2023|Chemicals, Process Safety|1 Comment

Carbon Dioxide: A Simple Asphyxiant?

“In the last two decades of the twentieth century, hundreds of people have died of carbon dioxide asphyxiation near volcanoes in Cameroon and in Indonesia.”  — Allison Stark Draper, in Coping With Natural Disasters Many worry about carbon dioxide in the atmosphere as a greenhouse gas. Carbon dioxide is also a much more urgent hazard. [...]

By |2023-11-16T11:26:38-06:00November 16th, 2023|Chemicals, Process Safety|Comments Off on Carbon Dioxide: A Simple Asphyxiant?

All Gases Are Hazardous

“Jumpin’ Jack Flash, it’s a gas.”  — Mick Jagger and Keith Richards, of The Rolling Stones Ever notice how the popular media never refer to chemicals. No, they talk about “toxic chemicals.” It’s as though any material that is not toxic is not a chemical, or perhaps, any material called a chemical must be toxic. [...]

By |2023-11-09T09:13:59-06:00November 9th, 2023|Chemicals, Process Safety|1 Comment

Ain’t Misbehavin’: Frozen Pipes When It’s Warm

“Hell freezing over? I don’t know. But the devil’s definitely wearing a sweater.”  — J.R.Moehringer Nerd humor requires pointing out that Hell freezing over does NOT equate to sweater weather. Given that Hell is the place where it rains fire and brimstone (sulfur), the temperatures in Hell must be above the freezing point of sulfur. Molten [...]

By |2023-10-26T09:02:38-05:00October 26th, 2023|Chemicals, Process Safety|Comments Off on Ain’t Misbehavin’: Frozen Pipes When It’s Warm

Transportation Safety: Hauling Hazardous Chemicals

“This is the beginning, and the dawn of a new era of transportation.”  — Shervin Pishevar On Friday evening, September 29, 2023, at about 8:40 pm, the impatient driver of an SUV decided to pass a truck hauling anhydrous ammonia. Traffic on U.S. 40 was heavier than usual due to a detour of I-70 to [...]

By |2024-10-18T09:33:37-05:00October 5th, 2023|Chemicals, Current Events|Comments Off on Transportation Safety: Hauling Hazardous Chemicals

Confined Spaces: What Are They?

“Space is something you have to define. Otherwise, it is like anxiety, which is too vague. A fear is something specific. I like claustrophobic spaces, because at least then you know your limits.”  — Louise Bourgeois A group recently met to discuss locking out a process vessel for entry. They identified the agitator, all of [...]

By |2023-09-28T14:07:25-05:00September 28th, 2023|Procedures, Workplace Safety|Comments Off on Confined Spaces: What Are They?

Earthquakes: How Will You Respond?

“Earthquakes don’t kill people. Buildings kill people.”  — Wendy Bohon, geologist How many times have you been in a hazard review discussing the potential for a particularly severe event when someone asserts, “Well, I’ve never seen anything like that happen.” As though their proclamation of “never” settles the question. I sometimes ask them how long [...]

By |2023-09-21T15:27:53-05:00September 21st, 2023|Current Events, Workplace Safety|Comments Off on Earthquakes: How Will You Respond?

Are We in Danger? Reauthorizing CFATS

“Anything can go away. There’s no such thing as security. You can do things that give you the illusion of security, but there’s really no such thing.”  — Will Smith Authorization for the Chemical Facility Anti-Terrorism Standards (CFATS) expired on July 28, 2023. The House of Representatives passed the reauthorization bill by a vote of [...]

By |2023-09-07T20:11:44-05:00September 7th, 2023|Chemicals, Current Events, Process Safety|Comments Off on Are We in Danger? Reauthorizing CFATS

…And Their Representatives

“Representation not only reflects, but actually changes reality.”  — Angela Chen OSHA has several regulations that allow or require employee participation in activities regarding workplace safety. For instance, there is employee participation during OSHA inspections and in the development of the elements of the Process Safety Management (PSM) standard. And those regulations don’t stop at [...]

By |2023-08-31T15:37:00-05:00August 31st, 2023|PHA, Process Safety Management|2 Comments
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