basically in DCP (dry chemical powder) fire extinguishers mono ammoniumphosphate is used. but some more chemicals compound are also used e.g. sodium bicarbonate, potassium bicarbonate, pottasium chloride etc.
Yousaf Imran.
Because mono ammonium phosphate itsself is a excellent fire retardant, that is very it is used in the DCP fire extinguisher.
In a 5 kg DCP cartridge type extinguisher .the co2 cartridge pressure becomes 7 kg/cm2.
The expiry time of a DCP fire extinguisher is usually around seven years. After this, the powder should be replaced. Additionally, these extinguishers should be checked yearly to ensure all parts are present and that the seals are intact.
Generally, no, but a fire would.
ABC is the acronym for an extinguisher certified for A, B, and C type fires. A is common fuels like wood, B is for flammable liquids, and C is for charged electrical fires. DCP stands for Dry Chemical Powder, which is inside the extinguisher and is the actual fire suppressant. Basically, DCP is a type of ABC Extinguisher. You can also get extinguishers for Type D (combustible metals), Type K (kitchen), and other specialized extinguishing agents (i.e. Halon). Or you can get a Type A extinguisher, AB, B, BC, ABC, and others even!
basically in DCP (dry chemical powder) fire extinguishers mono ammoniumphosphate is used. but some more chemicals compound are also used e.g. sodium bicarbonate, potassium bicarbonate, pottasium chloride etc.
Nytrogen gas
Since petroleum is a flammable liquid, a Class B fire extinguisher would be used.
The fire extinguisher contents are designed to interact with the fuel/air boundary, so you need to aim at where the fuel is burning, that is, "at the base of the flames."
Multi-purpose fire extinguishers, like ABC, are typically dry chemical.
So that the fire extinguisher is identified in case of need. Also for accessibility of the fire extinguisher since it can reflect.
Fire extinguishers are marked by letter and color. These identify the contents of extinguisher (water, foam, wet chemical, e.g.), and fire classification.(paper and wood, combustible metals, e.g).