Inspection, Maintenance, and Hydrostatic Testing periods for Portable Fire Extinguishers

National Extinguisher Service offers the following timetable for the inspection, maintenance, recharging, and testing of portable fire extinguishers. The section and paragraph numbers listed in parenthesis refer to NFPA 10-Standard for Portable Fire Extinguishers, 2018 edition.

Extinguisher Type Inspection (7.2.1.2) Inspection by Certified Individual (7.3) Maintenance/ Internal Exam. (7.3.3.1) Hydrostatic Testing (8.3.1)
Dry Chemical (Stored Pressure) 30 days 1 year 6 years 12 years
Carbon Dioxide 30 days Maintenance & Conductivity test at 1 year 5 years (hydro) 5 years
Halogenated (Halon) 30 days 1 year 6 years 12 years
Halotron 30 days 1 year 6 years 12 years
FE-36 30 days 1 year 6 years 12 years
Water (Stored Pressure) 30 days 1 year 5 years (hydro) 5 years
Wet Chemical 30 days 1 year 5 years (hydro) 5 years
AFFF (Liquid Charge Type) 30 days 1 year 3 years 5 years
FFFP (Liquid Charge Type) 30 days 1 year 3 years 5 years
Dry Chemical (Stainless Steel) 30 days 1 year 5 years (hydro) 5 years
Dry Powder 30 days 1 year 6 years 12 years
Dry Chemical (Cartridge) 30 days 1 year 1 year 12 years