This standard specifies the requirements for portable, stored pressure, mechanical foam type fire extinguishers, primarily of 9-litre capacity. It covers materials, construction details, anti-corrosive treatments, performance requirements, and testing methods for extinguishers intended for Class A and Class B fires.
Portable Fire Extinguisher Mechanical Foam Type (Stored Pressure) -Specification
Quick Reference Values
Standard Capacity9 litres
Minimum Fire Rating (9L)2A and 21B
Hydrostatic Test Pressure3.5 MPa
Minimum Effective Discharge Time (9L)25 seconds
Minimum Percentage of Discharge95 percent
Service Pressure1.5 MPa
Practical Notes
These extinguishers are highly effective on flammable liquid (Class B) fires and are also suitable for solid combustible (Class A) fires, but should NOT be used on electrical fires.
Ensure the pressure gauge needle is within the green 'operable' zone during routine inspections as per IS 2190.
The foam concentrate used must be compliant with IS 4989 and compatible with the extinguisher's construction materials.