Section 6005 — OZONE-GAS GENERATORS — 2025 California Fire Code (Title 24, Part 9)

6005.1 Scope. ¶

6005.1 Scope. Ozone-gas generators having a maximum ozone-generating capacity of 0.5 pound (0.23 kg) or more over a 24-hour period shall be in accordance with Sections 6005.2 through 6005.6. Exceptions: 1. Ozone-generating equipment used in Group R-3 occupancies. 2. Ozone-generating equipment where used in Group H-5 occupancies where in compliance with Chapters 27 and 50 and the other provisions in this chapter for highly toxic gases. 60-8 2025 CALIFORNIA FIRE CODE on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. HIGHLY TOXIC AND TOXIC MATERIALS

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district

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6005.2 Design. ¶

6005.2 Design. Ozone-gas generators shall be designed, fabricated and tested in accordance with NEMA 250.

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6005.3 Location. ¶

6005.3 Location. Ozone generators shall be located in approved cabinets or ozone generator rooms in accordance with Section 6005.3.1 or 6005.3.2. Exception: An ozone-gas generator within an approved pressure vessel where located outside of buildings. 6005.3.1 Cabinets. Ozone cabinets shall be constructed of approved materials and compatible with ozone. Cabinets shall display an approved sign stating: “OZONE-GAS GENERATOR—HIGHLY TOXIC—OXIDIZER.” Cabinets shall be braced for seismic activity in accordance with the California Building Code . Cabinets shall be mechanically ventilated in…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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6005.4 Piping, valves and fittings. ¶

6005.4 Piping, valves and fittings. Piping, valves, fittings and related components used to convey ozone shall be in accordance with Sections 6005.4.1 through 6005.4.3. 6005.4.1 Piping. Piping shall be welded stainless steel piping or tubing. Exceptions: 1. Double-walled piping. 2. Piping, valves, fittings and related components located in exhausted enclosures. 6005.4.2 Materials. Materials shall be compatible with ozone and shall be rated for the design operating pressures. 6005.4.3 Identification. Piping shall be identified with the following: “OZONE GAS—HIGHLY TOXIC—OXIDIZER.”

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling

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6005.5 Automatic shutdown. ¶

6005.5 Automatic shutdown. Ozone-gas generators shall be designed to shut down automatically under the following conditions: 1. When the dissolved ozone concentration in the water being treated is above saturation when measured at the point where the water is exposed to the atmosphere. 2. When the process using generated ozone is shut down. 3. Failure of the ventilation system for the cabinet or ozone-generator room. 4. Failure of the gas detection system in an ozone-gas-generator room.

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory

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6005.6 Manual shutdown. ¶

6005.6 Manual shutdown. Manual shutdown controls shall be provided at the generator and, where in a room, within 10 feet (3048 mm) of the main exit or exit access door. on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. 60-10 2025 CALIFORNIA FIRE CODE on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE CHAPTER 61 – LIQUEFIED PETROLEUM GASES (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.) Adopting…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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