'Is Halon safe?
According to the Halon Alternatives Research Corporation (HARC), a non-profit trade association that promotes the development and approval of environmentally acceptable Halon alternatives (http://www.harc.org/), when used properly Halon has "an excellent fire fighting record with little, if any, risk." Halon is unique in how it breaks the chemical chain reaction between fuel, ignition source and oxygen. People incorrectly believe that Halon displaces oxygen in the area of its use. In fact, less than 8% concentration by volume is required for any given fire. The net result is plenty of air for pilots and passengers to breathe, even during a fire incident."
Our computer facility people used to say the same thing. All Halon literature and training says no oxygen displacement. If it displaced oxygen, the guy in the phone booth demonstrator would have dropped instantly.
-----Original Message-----
From: "Clarence Romero Jr."
Sent: Jun 4, 2020 3:10 PM
To: Les Thompson
Cc: The FerrariList
Subject: Re: [Ferrari] New Type of Fire Extinguisher
That might work in a phone booth
At the simulators at my old airline they used halon
We were told if the alarm rang while in the sims
Get out as fast as you can because it was going to displace oxygen
RF4-4EVR
Scars are Tattoos with better stories !
If you have no enemies, you have no character !
Clyde Romero
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On Jun 4, 2020, at 4:16 PM, Les Thompson <les21 [at] ix.netcom.com> wrote:
Halon demonstration.
Years ago, at Hughes, we had California Fire Suppression come out to provide training and demonstrate some of their products. They said the Halon worked by breaking the fire triangle, but didn't explain how. Said it did not displace the air in the room.
They set up a phone booth sized enclosure with a small window with exterior shelf and a door for entry. One of their people got into the booth, another lit a large candle and placed it on the shelf. The guy in the booth pulled it through the window into the booth. Stayed lit, then they released the Halon into the booth, candle goes out. He then proceeded to pass the candle back out the window, where it was re-lit. He pulled it back inside with him, where it immediately went out. They repeated this for about 5 minutes. Demonstration impressed me, as I remember it vividly.
There was obviously enough oxygen in the booth for the guy to breathe. I've experienced an oxygen deficient enclosure and you go out immediately like a light switch. Fortunately my experience was with dry ice, 40 gallon trash can, leaning in to get a soda and not an confined space. As I started down, my head came into fresh air and the lights came back on.
Later read that Halon exposure had been linked to possible mental issues and always wondered if the guy in the booth later became an axe murderer.
Les T.
gmail.com)