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66 NWPCA Fire Code Compliance Manual for Outdoor Storage of Wood Pallets | Version 1.0 (December 2017) A.2.3.3 Preventative Maintenance Program for Equipment Standards Related to Fire Protection Systems and Equipment: System/Equipment Standard Portable fire extinguishers NFPA 10 Carbon-dioxide fire-extinguishing system NFPA 12 Halon1301 fire-extinguishing systems NFPA 12A Dry-chemical extinguishing systems NFPA 17 Wet-chemical extinguishing systems NFPA 17A Water-based fire protection systems NFPA 25 Fire alarm systems NFPA 72 Smoke and heat vents NFPA 204 Water-mist systems NFPA 750 Clean-agent extinguishing systems NFPA 2001 A.2.3.3.1 Portable Fire Extinguishers Persons performing maintenance and recharging of extinguishers shall be certified. Certification requires that a person pass a test administered by an organization acceptable to the AHJ [NFPA 10 §7.1.2.1]. Fire extinguishers removed from service for maintenance or recharging shall be replaced by a fire extinguisher suitable for the type of hazard being protected and shall be of at least equal rating [NFPA 10 §7.1.3]. Fire extinguishers and Class D extinguishing agents shall be inspected at least once per calendar month [NFPA 10 §7.2.1.2.1]. Periodic inspection or electronic monitoring of fire extinguishers shall include a check of at least the following items [NFPA 10 §7.2.2]: (1) Location in designated place (2) No obstruction to access or visibility (3) Pressure gauge reading or indicator in the operable range or position (4) Fullness determined by weighing or hefting (5) Condition of tires, wheels, carriage, hose, and nozzle for wheeled extinguishers (6) Indicator for non-rechargeable extinguishers using push to- test pressure indicators An annual external visual examination of all fire extinguishers shall be made to detect obvious physical damage, corrosion, or nozzle blockage to verify that the operating instructions are present, legible, and facing forward, and that the HMIS information is present and legible, and to determine if a 6-year interval examination or hydrostatic test is due [NFPA 10 §7.3.2.1]. NFPA 10 Table 7.3.3.1 lists examination intervals for extinguishers: