{"id":"fire-extinguisher","version":"0.4.0","classification":{"uniformat":"D4030"},"names":["Portable fire extinguisher"],"aliases":["extinguisher","ABC extinguisher"],"service_life":{"median_years":12.5,"range_years":[10,15],"range_basis":"source_spread"},"pm_tasks":[{"task":"Visual check: in place, unobstructed, charged, in good order","frequency":"P1M","reference":"Public Buildings Service Preventive Maintenance Guide (Public Buildings Maintenance Standards)","url":"https://web.archive.org/web/20231003141600/https://origin-www.gsa.gov/system/files/GSA%20PBS%20Preventive%20Maintenance%20Guide%202022-01302023_0.pdf","page":304,"checklist":"FLSF-FEX-01-01M Fire Extinguishers - Inspection"},{"task":"Annual maintenance of stored-pressure extinguishers","frequency":"P1Y","reference":"Public Buildings Service Preventive Maintenance Guide (Public Buildings Maintenance Standards)","url":"https://web.archive.org/web/20231003141600/https://origin-www.gsa.gov/system/files/GSA%20PBS%20Preventive%20Maintenance%20Guide%202022-01302023_0.pdf","page":310,"checklist":"FLSF-FEX-02-01Y Fire Extinguishers - Stored Pressure with Gauge"},{"task":"Six-year maintenance of stored-pressure extinguishers (non-stainless shells)","frequency":"P6Y","reference":"Public Buildings Service Preventive Maintenance Guide (Public Buildings Maintenance Standards)","url":"https://web.archive.org/web/20231003141600/https://origin-www.gsa.gov/system/files/GSA%20PBS%20Preventive%20Maintenance%20Guide%202022-01302023_0.pdf","page":312,"checklist":"FLSF-FEX-02-06Y Fire Extinguishers - Stored Pressure With Gauge (Non-Stainless Steel Shell)"},{"task":"Hydrostatic test (CO2, water, foam, stainless dry chemical)","frequency":"P5Y","reference":"Public Buildings Service Preventive Maintenance Guide (Public Buildings Maintenance Standards)","url":"https://web.archive.org/web/20231003141600/https://origin-www.gsa.gov/system/files/GSA%20PBS%20Preventive%20Maintenance%20Guide%202022-01302023_0.pdf","page":306,"checklist":"FLSF-FEX-01-05Y Fire Extinguishers - Hydrostatic Testing, Carbon Dioxide, Stored Pressure and AFFF"},{"task":"Hydrostatic test (dry chemical, halon, cartridge types)","frequency":"P12Y","reference":"Public Buildings Service Preventive Maintenance Guide (Public Buildings Maintenance Standards)","url":"https://web.archive.org/web/20231003141600/https://origin-www.gsa.gov/system/files/GSA%20PBS%20Preventive%20Maintenance%20Guide%202022-01302023_0.pdf","page":308,"checklist":"FLSF-FEX-01-12Y Fire Extinguishers - Hydrostatic Testing, Halon, Dry Powder, Stored Pressure, Cartridge Operated"}],"basis":[{"type":"public_document","life_type":"planning","title":"CNA e-Tool Estimated Useful Life Table","by":"U.S. Department of Housing and Urban Development","url":"https://www.hud.gov/sites/documents/eul_for_cna_e_tool.pdf","page":15,"code":"HUD CNA 3.6.1.4","label":"Fire extinguishers","years":[10,15],"note":"Family properties 10 years, elderly 15. US multifamily housing."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["Only one source so far: HUD planning lives for US multifamily housing. Canadian and observed sources are needed.","Written for GSA contracted O&M in US federal buildings; job plans are generic and defer to manufacturer instructions, and the fire extinguisher plans only point to NFPA 10."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-22","canonical_url":"https://unfinished.one/c/fire-extinguisher","versioned_url":"https://unfinished.one/c/fire-extinguisher/v/0.4.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Portable fire extinguisher, v0.4.0. https://unfinished.one/c/fire-extinguisher/v/0.4.0"}