[BC] KOMO, Seattle building fire

[Broadcast List USER]

I stand by what I wrote, and here is why.

Let's assume you Have a NASA mix of 5 PSI oxygen, and 10 PSI  
Nitrogen.  Now you introduce 1 PSI of helium.  The percentage of  
oxygen in the total mix is reduced.

When Halon is dumped in a room, the percentage of oxygen is lowered in  
the total mix.  However, as I wrote and was edited out, it isn't  
lowered to the point where life cannot be sustained.

[Funny how the subscripted 2s were all replaced with question marks.]

--chip

On Jul 6, 2009, at 1:00 PM, broadcast-request at radiolists.net wrote:

> Message: 10
> From: Alan Alsobrook <radiotech at bellsouth.net>
>
> CO2 works by displacing Oxygen, Halon works by interrupting the  
> chemical
> chain reaction.

> Broadcast List USER wrote:
>> First of all, neither Halon nor CO2 remove oxygen from the air.  Both
>> displace Oxygen, and because it takes so much CO? to suppress a fire,
>> it makes the partial pressure of oxygen so low that human life cannot
>> be supported.