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- Path: sparky!uunet!gatech!purdue!mentor.cc.purdue.edu!noose.ecn.purdue.edu!en.ecn.purdue.edu!ghg
- From: ghg@en.ecn.purdue.edu (George Goble)
- Newsgroups: rec.autos.tech
- Subject: Re: Fire Extinguisher - Halon or Dry Chemical
- Message-ID: <1992Aug23.142742.20012@en.ecn.purdue.edu>
- Date: 23 Aug 92 14:27:42 GMT
- References: <714499354.F00001@blkcat.UUCP> <BtEr14.GCJ@math.uwaterloo.ca>
- Organization: Purdue University Engineering Computer Network
- Lines: 31
-
- In article <BtEr14.GCJ@math.uwaterloo.ca> fwbent@watmsg.uwaterloo.ca (Fred Bent) writes:
- >In article <714499354.F00001@blkcat.UUCP> Frank.Mallory@f417.n109.z1.fidonet.org (Frank Mallory) writes:
- >>
- >> SR> I was looking to purchase a good extinguisher to carry in the car.
- >> SR>
- >> SR> I know halon is probably a lot less messy but what other advantages
- >> SR> does one have over the other.
- >>
- >>Halon is especially good for extinguishing a fire in an enclosed space (e.g.
- >>engine compartment or car interior). Simply leave the hood or doors closed and
- >>spray in the halon through the radiator or partially open window or door.
- >>
- >>Halon is more dangerous in that while not toxic, it will not support life. So if
- >>someone is unconcious or trapped inside a car, you have to be very careful about
- >>using halon inside the passenger compartment.
- >
- >Isn't Halon a CFC? I thought that they could not make Halon fire
- >exstinguishers any more. Perhaps this is only in Canada....
-
- Worse. It is a "BCFC" (CFC with bromine). Bromine does far more ozone
- damage than does chlorine. Halon-1211, what is probably in that extinguisher,
- is Freon-12 (CFC-12, with one bromine atom substituted for a chlorine).
- It has an assigned ODP (ozone depeletion potential) of 3.0, which makes
- it 3X worse for the ozone than Freon-12 (used in auto-A/Cs). Halon-1301,
- for computer rooms, is ODP 10.0!
-
- One substitute for Halon appears to be HCFC-123, which has an ODP of 0.02
- or something like that. However, rats exposed to it at 300ppm, got
- testicle tumors. Human exposure for R-123 is now 10ppm. Put out that fire
- and have your balls fall off.
- --ghg
-