References
ABC dry chemical
ABC or multi-purpose dry chemical is a dry chemical extinguishing agent. It uses a specially fluidized and siliconized monoammonium phosphate powder. ABC dry chemical is usually a mix of monoammonium phosphate and ammonium sulfate, the former being the active one. The mix between the two agents is usually 40–60%, 60-40%, or 90-10% depending on local standards worldwide. The USGS uses a similar mixture, called Phos Chek G75F. [1]
Uses
It insulates Class-A fires by melting at approximately 350–400 degrees F. The powder breaks the chain reaction of Class-B fires by coating the surface to which it is applied. It is safe and effective for Class-C fires since it is a non-conductor of electricity.
Sizes of these handheld fire extinguishers range in US customary sizes from 2½ lb., 5 lb., 6 lb., 10 lb., 20 lb. and "Fast Flow" and cartridge operated 30 lb. extinguishers. Wheeled extinguishers used in high hazard areas range from 150 lb. – 350 lb. For stationary handline systems the capacities range from 500 lb. – 3000 lb. units. In EN 3 European standards, the range is 1 kg to 12 kg; wheeled models containing 30, 50, 75 and 100 kg are also used.
ABC dry chemical is inappropriate for chlorine or oxidizer fires.[2] The resulting chemical reaction can cause an explosion or a breakdown of the chemicals releasing toxic gases. Water should be used.[3][4] ABC dry chemical is inappropriate for certain metal fires (Class-D) as well as cooking oil fires (Class-K). Due to the corrosive properties of ABC Dry chemical, it is not recommended for use around aircraft or sensitive equipment.
References
Convince yourself of our products for your applications.
We recommend the following products for your process medium:
hose pinch valves
butterfly valves
gate valves
ball valves and plug valves
Uses
It insulates Class-A fires by melting at approximately 350–400 degrees F. The powder breaks the chain reaction of Class-B fires by coating the surface to which it is applied. It is safe and effective for Class-C fires since it is a non-conductor of electricity.
Sizes of these handheld fire extinguishers range in US customary sizes from 2½ lb., 5 lb., 6 lb., 10 lb., 20 lb. and "Fast Flow" and cartridge operated 30 lb. extinguishers. Wheeled extinguishers used in high hazard areas range from 150 lb. – 350 lb. For stationary handline systems the capacities range from 500 lb. – 3000 lb. units. In EN 3 European standards, the range is 1 kg to 12 kg; wheeled models containing 30, 50, 75 and 100 kg are also used.
ABC dry chemical is inappropriate for chlorine or oxidizer fires.[2] The resulting chemical reaction can cause an explosion or a breakdown of the chemicals releasing toxic gases. Water should be used.[3][4] ABC dry chemical is inappropriate for certain metal fires (Class-D) as well as cooking oil fires (Class-K). Due to the corrosive properties of ABC Dry chemical, it is not recommended for use around aircraft or sensitive equipment.
References
- ^"Ecological Effects of Fire Retardant Chemicals and Fire Suppressant Foams". Archived from the original on 2011-02-16. Retrieved 2011-02-16.
- ^"SELECTION OF FIRE EXTINGUISHERS FOR FIRES INVOLVING OXIDIZERS (SWIMMING POOL CHEMICALS)". Retrieved 2008-09-13.
- ^"Chlorine facts". Archived from the original on 2008-04-30. Retrieved 2008-09-13.
- ^"Sprinkler protection for swimming pool chemicals". NFPA Journal. 2004. Retrieved 2008-09-13.
Convince yourself of our products for your applications.
We recommend the following products for your process medium:
hose pinch valves
butterfly valves
gate valves
ball valves and plug valves
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