California Code of Regulations
Title 19 - Public Safety
Division 1 - State Fire Marshal
Chapter 3 - Fire Extinguishers
Article 6 - Inspection, Maintenance and Recharging
Section 578.5 - Precautionary Pressurization Measures

Universal Citation: 19 CA Code of Regs 578.5

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

(a) A rechargeable stored pressure type extinguisher shall be pressurized only to the charging pressure specified on the extinguisher nameplate. A regulated source of pressure, set no higher than 25 psi (172 kPa) above the operating (service) pressure, shall be used to pressurize fire extinguishers. An unregulated source of pressure, such as a nitrogen cylinder without a pressure regulator, shall never be used because the fire extinguisher could be over-pressurized and possibly rupture. A fire extinguisher shall never be left connected to the regulator of a high-pressure source for an extended period of time. A defective regulator could cause the container to rupture due to excess pressure.

(b) The gauge used to set the regulated source of pressure shall be calibrated at least annually.

1. New section filed 3-4-92; operative 4-3-92 (Register 92, No. 15).
2. Renumbering of former section 578.5 to section 578.4 and renumbering and amendment of former section 578.6 to section 578.5 filed 12-27-2001; operative 1-1-2002 pursuant to Government Code section 11343.4 (Register 2001, No. 52).

Note: Authority: Section 13160, Health and Safety Code. Reference: Section 13160, Health and Safety Code.

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