Portable Fire Extinguisher Monthly Inspection Log
Key Takeaways:
- Primary Regulation: NFPA 10 Section 7.2.1.2 and OSHA 29 CFR 1910.157(e)(2).
- Inspection Frequency: Visual inspections are required at least once per calendar month.
- Documentation Required: The date of the inspection and the initials of the inspector must be recorded on a tag or label attached to the extinguisher, or in an electronic log.
- Core Checking Requirement: Verify the pressure gauge is in the operable range (green zone) and the safety pin is perfectly intact.
Why Monthly Inspections Matter
Fire extinguishers fail when pressure drops, hoses crack, or they get blocked by equipment. A dead extinguisher during an emergency leads to catastrophic property loss and severe legal liability. OSHA 1910.157(e)(2) mandates a visual monthly inspection to catch these exact failures.
Failure to perform and document these checks results in OSHA and fire marshal citations. OSHA fines for missing or uninspected fire extinguishers often range from $3,000 to $15,000 per violation. Statistics show functioning extinguishers put out 80% to 90% of fires before the fire department arrives.
Monthly Visual vs. Annual Maintenance
Different levels of inspection require different personnel.
| Inspection Type | Frequency | Performed By | Action Required |
|---|---|---|---|
| Visual Inspection | Monthly | Designated Employee | Visually check for damage, pressure, and access. Sign the tag. |
| Maintenance Audit | Annually | Certified Fire Technician | Internal inspection, mechanical check, and replacement of parts if necessary. |
| Hydrostatic Test | Every 5-12 Years | Certified Facility | Pressure testing the cylinder to ensure structural integrity. |
The 6-Point Monthly Inspection Checklist
Follow this procedure for every portable extinguisher in your facility at least once a calendar month.
- Accessibility: Confirm the extinguisher is visible, unobscured, and in its designated location. The signs pointing to it must be clearly readable.
- Pressure Gauge: Look at the gauge. The needle must sit squarely in the green operable range. If it has dropped into the red "recharge" zone, tag it out of service.
- Safety Pin and Seal: Verify the pull pin is in place and the tamper seal is completely unbroken. If the seal is missing, the extinguisher may have been discharged.
- Physical Condition: Inspect the cylinder for rust, corrosion, dents, or leakage. Check the hose and nozzle for cracks, debris, or dry rot.
- Heft Check: Lift the extinguisher off the bracket to check its weight. It should feel completely full.
- Documentation: Initial and date the inspection tag attached to the unit. If using digital tracking, log the inspection in your system immediately.
What To Do With Defective Extinguishers
When you find an extinguisher that fails the visual inspection, you must act.
"Extinguishers that are empty, discharged, or have a pressure drop... shall be removed from service and replaced with an extinguisher of the same type and at least equal rating." - NFPA 10
Remove the defective unit immediately. Place an identical, fully charged spare on the wall hook or in the cabinet. Contact your certified service provider to recharge, repair, or condemn the failed unit. Never leave an empty hook or a partially discharged extinguisher on the floor.