Halotron I

Halotron I is a fire extinguishing agent based on the raw material HCFC-123 (93%) mixed with tetrafluoromethane and argon as propellants.

Halotron I

Chemical structures of dichlorotrifluoroethane (top) and tetrafluormethane (bottom), the two major components of Halotron I
Hazards
Safety data sheet Halotron
GHS pictograms
NFPA 704 (fire diamond)
Lethal dose or concentration (LD, LC):
3.2% (4 hrs, inhalation)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Global emission concerns

It was originally introduced in 1992 to replace the severely ozone-depleting Halon 1211 (bromochlorodifluoromethane). Halon 1211 has a global warming potential of 1890, whereas Halotron I's GWP is 77, being a 96% reduction.[2]

Performance

In December 2011, Halotron I was tested against "hidden fires", spurred by the effectiveness its predecessor demonstrated on an in-flight fire aboard a Delta L-1011 flight on March 17, 1991. The test was conducted at UL, and demonstrated similar effectiveness as Halon 1211, with significantly less human and global harm.[3]

DOT classification

UN1956, Compressed Gases, N.O.S., Nonflammable Gas. IMCO CLASS: 2.2

gollark: Some of them, yes, but not enough to justify £80 (at the minimum, for 4TB) for a dubiously useful disk.
gollark: There are reasons to want desktops other than storage, and you can just *buy* disks.
gollark: Yes. A single 4TB HDD is cheaper than 4 1TB ones.
gollark: It would be MORE expensive in multiple disks.
gollark: I mean, it should probably have an SSD, but 4TB disks aren't that cheap and not everyone needs them.

References
  1. http://www.halotron.com/pdf/Halotron1_SDS.pdf
  2. https://www.fire.tc.faa.gov/2010Conference/files/Halon_Replacement_I/Boeing2BTPHandheld/CarloBTPupdatePres.pdf
  3. "R0201336.pdf" (PDF). NIST.gov. Retrieved December 23, 2017.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.