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FIRE SAFETY => Portable Firefighting Equipment => Topic started by: Fire Monkey on March 14, 2016, 11:51:52 AM

Title: Throwable fire extinguishers
Post by: Fire Monkey on March 14, 2016, 11:51:52 AM
Does any one have any views on a recent move to produce/market throwable fire extinguishers in Japan- they are like a reverse Molotov cocktail made out of ammonium phosphate dibasic and ammonium bicarbonate ? I have seen several throwable devises in museums but they appear to be making a come back. Do you know of any buildings/industrys where these have been installed and why. How should risk assessors deal with these should they come across them? In what environments would they be appropriate and how could they supplement/replace more traditional devices? Apparently they are not suitable for burning oils fire in the pen air are advanced fires. I know my aim is rather poor and what level of force could be required to break the contain when it is thrown. I don't know what is available to but in the UK and what BS they meet.

Cheers,

Title: Re: Throwable fire extinguishers
Post by: Tom Sutton on March 14, 2016, 12:13:44 PM
Check out http://home.howstuffworks.com/home-improvement/household-safety/fire/how-do-throwable-fire-extinguishers-work.htm for more info
Title: Re: Throwable fire extinguishers
Post by: AnthonyB on March 14, 2016, 09:05:33 PM
Niche product, I wouldn't want to see them in general use. We use to have grenade extinguishers from the late 19th to mid 20th century, filled with water, brine, various salts or CTC, however as chemical & pressurised extinguishers developed and improved they swiftly vanished.

The test fire videos are impressive but I can think of several 'real life' scenarios where they wouldn't work.

Incidentally the similar aerosol technology used in fixed dischargers has just had a setback after killing 8 people and injuring 7 in a single incident involving the Pyrogen technology, you'd never have got that with Halon 1301!

http://news.sky.com/story/1659288/chemical-spray-kills-eight-thai-bank-workers