Fire Extinguisher Expiry and Hydro Test Rules in India (IS 2190 Explained)

• Monthly inspection: a visual check that the extinguisher is in place, accessible, undamaged, sealed and showing correct pressure.
• Yearly maintenance: a detailed examination by a trained person, covering mechanical parts, agent and pressure.
• Hydraulic pressure test, water, foam and dry powder types: every 3 years.
• Hydraulic pressure test, CO2 and clean agent types: every 5 years.
• Refilling: after any use, when inspection shows it is needed, and on the refill cycle for the agent.

What does the monthly check involve?

• Extinguisher is at its marked location and not blocked
• Operating instructions are readable
• Safety pin and tamper seal are intact
• Pressure gauge is in the green zone
• No dents, rust, leaks or damaged hose
• Service tag is present and up to date

What happens in a hydro test?

The empty cylinder is filled with water and pressurised well above its normal working pressure to confirm it will not rupture. Cylinders that fail must be condemned and replaced. Hydro testing needs proper equipment and trained staff, so always use an experienced service provider.

Every refillable extinguisher has a maximum service life counted from its manufacturing date, after which it must be replaced even if it looks fine. Check the manufacturing date on each unit and plan replacements in advance.

During a fire NOC inspection or renewal, or after an incident, you may be asked to show maintenance records. Keep a register (or digital log) with each extinguisher's location, type, manufacture date, last maintenance, last hydro test and next due date.