In the UK, fire extinguisher inspection and maintenance schedules are governed by British Standards, specifically BS 5306-3:2017. According to this standard, fire extinguishers should undergo several levels of inspection and maintenance:
Monthly Visual Inspection: This can be carried out by the business owner or designated staff members. The inspection should check that: The extinguisher is in its correct location. The extinguisher has not been discharged, tampered with, or damaged. The pressure gauge (if present) is within operational limits (the needle should be in the green zone). The safety pin and tamper seal are intact.
The instructions on the extinguisher are legible and facing outwards.
Annual Maintenance: This should be carried out by a competent person, typically a trained fire safety engineer or technician. The maintenance involves a thorough check of the extinguisher's physical condition, operational parts, and agent (such as powder, foam, or water). Any necessary repairs or replacements should be made during this time.
Extended Service and Overhaul: Water, Foam, Powder, and Wet Chemical Extinguishers: These should undergo an extended service (discharge test and refill) every five years.
CO2 Extinguishers: These require a more detailed examination, including a test discharge, every ten years.
The maintenance schedule should be recorded and the records retained as part of your fire safety documentation. If the extinguisher has been used, even partially, it should be immediately replaced or refilled and serviced, regardless of its scheduled maintenance.
Remember, these guidelines are for the minimum level of inspection and maintenance. Depending on the environment (e.g., areas with high risk or heavy usage), more frequent checks might be necessary. It's essential to adhere to these guidelines to ensure the safety and effectiveness of your fire extinguishers in the event of a fire.