Chapter 63 — OXIDIZERS, OXIDIZING GASES AND OXIDIZING CRYOGENIC FLUIDS
Section 6306
California Fire Code (Title 24, Part 9) · 2019 edition · updated 2026-09-10 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
6306.1 General. The storage and use of liquid oxygen (LOX)¶
in home health care in Group I-4 and R occupancies shall comply with Sections 6306.2 through 6306.6, or shall be stored and used accordance with Chapter 50.
6306.2 Information and instructions to be provided. The¶
seller of liquid oxygen shall provide the user with information in written form that includes, but is not limited to, the following:
Manufacturer’s instructions and labeling for safe storage and use of the containers.
Locating containers away from ignition sources, exits, electrical hazards and high-temperature devices in accordance with Section 6306.3.3.
Restraint of containers to prevent falling in accordance with Section 6306.3.4.
| STORAGE CONFIGURATION | LIMITS | ||
|---|---|---|---|
| STORAGE CONFIGURATION | Control area storage |
Group H occupancy storage |
Detached storage |
| Piles Maximum width Maximum height Maximum distance to aisle Minimum distance to next pile Minimum distance to walls |
12 feet Note a 8 feet Note b 4 feet |
16 feet Note a 10 feet Note b 4 feetc |
20 feet Note a 10 feet Note b 4 feetc |
| Maximum quantity per pile | NA | 30 tons | 100 tons |
| Maximum quantity per building | MAQ | 1200 tons | No Limit |
For SI: 1 foot = 304.8 mm, 1 pound = 0.454 kg, 1 ton = 0.907185 metric ton. a. Maximum storage height in nonsprinklered buildings is limited to 6 feet.
In sprinklered buildings see NFPA 400 for storage heights based on ceiling sprinkler protection. b. The minimum aisle width shall be equal to the pile height, but not less
than 4 feet and not greater than 8 feet. c. For protection level and detached storage under 2,300 pounds, there shall
not be a minimum separation distance between the pile and any wall.
TABLE 6304.1.5(3) STORAGE OF CLASS 4 OXIDIZER LIQUIDS AND SOLIDS
| STORAGE CONFIGURATION | LIMITS (feet) |
|---|---|
| Piles Maximum length Maximum width Maximum height Minimum distance to next pile |
10 4 8 8 |
| Maximum quantity per building | No Limit |
For SI: 1 foot = 304.8 mm.
6304.1.6 Separation of Class 4 oxidizers from other materials. In addition to the requirements in Section 5003.9.8, Class 4 oxidizer liquids and solids shall be separated from other hazardous materials by not less than a 1hour fire barrier or stored in hazardous materials storage cabinets.
6304.1.7 Contamination. Liquid and solid oxidizers shall not be stored on or against combustible surfaces. Liquid and solid oxidizers shall be stored in a manner to prevent contamination.
6304.1.8 Detached storage. Storage of liquid and solid oxidizers shall be in detached buildings where required by Section 5003.8.2.
6304.1.8.1 Separation distance. Detached storage buildings for Class 4 oxidizer liquids and solids shall be located not less than 50 feet (15 240 mm) from other hazardous materials storage.
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