Once every year, According to the guidelines set by the Bureau of Indian Standards (BIS), specifically IS 2190, the recommended frequency for refilling fire extinguishers is once every year. This standard is crucial to ensure the optimal functioning and reliability of these life-saving devices.
HPT of Fire Extinguishers, Hydrostatic testing is a way to test the fire extinguisher tank for leaks and overall strength. The portable fire extinguishers must be tested periodically to ensure it's safety and reliability. In addition to annual inspections, portable fire extinguishers must be disassembled and hydrostatically tested periodically.