Talk:Tag:emergency=fire extinguisher
Extinguisher type
According to Wikipedia, there is different kind of extinguishers according to the powder used.
They are sorted by class of fire :
- Class A: Ordinary combustibles. Class A fires consist of ordinary combustibles such as wood, paper, fabric, and most kinds of trash.
- Class B/C: Flammable liquid and gas
- Class C or Class E: Electrical
- Class D: Metal. Class D fires consist of combustible metals such as magnesium, potassium, titanium, and zirconium.
- Class K or Class F: Cooking oils and fats (kitchen fires)
I propose to use the simplest classification possible : use the letter of the class(es) directly on the tag fire_extinguisher, e.g :
fire_extinguisher=Afor an extinguisher class A
fire_extinguisher=BCfor an extinguisher class B and C
--Overflorian (talk) 09:22, 23 April 2015 (UTC)
Classification is not the same globally
The classification system seems to vary between different regions, see here for a comparison table:
http://en.wikipedia.org/wiki/Fire_extinguisher#United_States I suggest to use a more literal tag like fire_extinguisher_class=ordinary_combustibles etc. --Dieterdreist (talk) 10:33, 23 April 2015 (UTC)
Powder description instead of type of fire
Thanks for the feedback. I am not expert at all on the topic therefore I am open to describe with literal description. I just double checked in my office (in France) and couldn't find easily any "literal" mention. One the other way the class A and B were clearly mentioned. Therefore I think we will have to create a conversion table.
I tried to find an international standard for classes but couldn't find any. Therefore what if, instead of mentioning the combustible (e.g. ordinary combustible) we mention the powder. After all, in OSM we try to describe the physical elements themselves, not the use of them.
Therefore I propose the categories mentioned here https://en.wikipedia.org/wiki/Fire_extinguisher#United_Kingdom that are : water, foam, dry powder, Carbon dioxide (CO2), Wet chemical, Class D powder, Halon 1211/BCF
An example would be fire_extinguisher_class=water instead of fire_extinguisher_class=ordinary_combustibles
--Overflorian (talk) 19:11, 23 April 2015 (UTC)
- My thoughts on this:
- Why don't use
fire_extinguisher:*namespace instead of an underscore suffix? - When speaking of
class
in this case, many documentation treat it as
, not a type of fluid/powder provided by the extinguisher. So I propose
fire classfire_extinguisher:type=*key for this use instead. For example:fire_extinguisher:type=dry_chemicalwhich usually go withcolour=red; a very common type, general purpose, virtually all of them I found are labeled for US-NFPA fire class A+B+C.fire_extinguisher:type=halotron1forHalotron I; which usually go with colour=green, for US-NFPA fire class A+B+C; I have seen them sometimes in libraries.fire_extinguisher:type=halon1211forHalon 1211; which I have seen them with colour=yellow, also for US-NFPA fire class A+B+C; not very common.fire_extinguisher:type=co2forcarbon dioxide; not exactly common either, for US-NFPA fire class B+C; I have seen it once with colour=red.fire_extinguisher:type=waterwhich usually goes withcolour=silver; not exactly common, but can still be seen sometimes; for US-NFPA fire class A.fire_extinguisher:type=foamforfirefighting foam; not common, usually for US-NFPA fire class B.
- In my opinion, the tag
extinguishing:medium=*much more precise, shorter and is already used very often. --Plennert (talk) 12:17, 7 November 2024 (UTC)
- Why don't use
- Regarding tank colour, see a separate discussion point below.
- Full disclosure: these descriptions are based on my experience in Thailand- which mostly adopts US-NFPA standard.
- — Nutchanon Wetchasit (talk) 08:47, 19 January 2019 (UTC)
- --Plennert (talk) 13:04, 21 July 2023 (UTC)
- Please don't use
*:type=*. It is a meaningless suffix. Simple generic ones should be used, egcontent=*, not the over-specific and over-namespacedextinguishing:medium=*. I have suggestedsubstance=*to the neweremergency=fire_service_inlet.
But*=dry_chemicalis not an exact substance, while there is a need to describe them for categorizing, and for low level of detail. So there can be egcontent:form=*.
Water is not a "class" of fire extinguisher.fire_extinguisher=*should be used for fire extinguishing balls, and larger non-portable ones from gas cylinder size to trolley-mounted.fire_extinguisher=*fire_extinguisher=handheldfire_extinguisher=thrown(not all are balls)fire_extinguisher=trolley
content=*+content:form=*(can be added without knowing the exactcontent=*content:form=powder(Are there wet powder? Wet chemical is not powdered. Then "dry" is not needed.)content:form=gascontent:form=foamcontent=*(Depends on whether abbreviations should be used)
- class:country (This is the same in class of fire and extinguisher)
fire=*( Key:fire is an unclear and less numerous duplicate ofopenfire=*) : Makes it clear it is for the class of fire (Avoid "combustible" and "flammable", because they have specific definitions)fire=organic_solid(This is the UK and EU term. Clearer and easier to understand than "organic combustibles") :class:*=Afire=fluid(Including both flammable liquid & gas):class:US=Bfire=energized_electrical("Energized" is critical. Deenergized electrical system fire are not included, and are classified otherwise. ) :class:US=C/class:AU=E
—— Kovposch (talk) 10:19, 29 September 2023 (UTC)
Mapping the Tank Colour
One prominent characteristic about portable fire extinguishers is their colour, which can be mapped with colour=* key. While not being definitive and varies somewhat by country, tank's colour can give a strong hint on the type of fire extinguishing agent it contains (thus fire class that it is intended to cover), especially for uncommon types like Halotron I and Halon 1211.
Mapping with colour=* is also simple and can be done from afar; since you don't need to crouch to look closely or squint to read the label.
— Nutchanon Wetchasit (talk) 08:37, 19 January 2019 (UTC)