[Tagging] fire extinguisher class

John Willis johnw at mac.com
Thu Apr 23 21:02:49 UTC 2015

The fire type is most important, but depending on the material used, it can be used on several types -
So +1 for tagging the material first and foremost. 

Most common household extinguishers in the US are dry powder ABC extinguishers. 

At the bottom of the #united states section is a conversion chart - and they all lead back to what _type of fire_ is trying to be put out:

Regular combustibles

So my US ABC extinguisher in my garage would be:


Optional for my extinguisher


My old ABC ones are white, so color doesn't always denote what is inside. Trees are no label color codes in the U.S.  The letter codes change per location, so noting if it is UK or NZ or US is important. 

Many fire extinguishers in public places are signed.  In Japan they have cabinets, cases, lockers, little stands with a sign, and ones with a cone hat on top to keep the dust off. They have them everywhere in public buildings, sitting in a corner in a little stand with a little sign on a little pole. 



Cataloging the check date could be very useful to some mappers. If it doesn't have a pressure dial and is passed its expiration, it should be marked =old - as it is assumed without inspection the extinguisher is old or expired, and may not be reliable. If it has no pressure gauge and is expired, then it is very important to tag =old/expired - but having used a couple expired ones to put out a fire, I'm glad they were there. 

For extinguishers with visible pressure gauges, the person collecting the data is the checker, and therefore the data collection date is the check date, since it can easily be seen on many fire extinguishers if it is correctly pressurized. 

Certified extinguishers have a cert tag that will note the date that the extinguisher is certified to. People managing extinguishers might find that really nice to know if they want to collect the data for their uses (like a fire dept or something). 


> On Apr 24, 2015, at 3:24 AM, Bryce Nesbitt <bryce2 at obviously.com> wrote:
>> On Thu, Apr 23, 2015 at 10:43 AM, Craig Wallace <craigw84 at fastmail.fm> wrote:
>> In the UK, the class is not printed huge letters. They main thing they are labelled with is the contents of the extinguisher, with a coloured stripe. ie red for water, blue for powder, black for CO2.
> Then tag whatever's visible if the goal is to help someone find the device:
> fire_extinguisher:label=Class B/C
> fire_extinguisher:label=Black
> Though anyone who consults their smartphone during a fire is probably missing the point :-).  
> Class 8A 55B 75F is for the person purchasing the device, or learning what's available in a facility, not so much for during the emergency.
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