Chapter 39 — PROCESSING AND EXTRACTION FACILITIES
Section 3905
California Fire Code (Title 24, Part 9) · 2022 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.
3905.1 Gas detection. For extraction processes utilizing¶
flammable gases as solvents, a gas detection system complying with Section 916 shall be provided.
3905.1.1 Operation. Activation of the gas detection system shall result in all the following:
Initiation of distinct audible and visual alarm signals in the extraction room.
Deactivation of all heating systems located in the extraction room.
Activation of the mechanical ventilation system, where the system is interlocked with gas detection.
De-energize all light switches and electrical outlets.
3905.1.2 Failure of the gas detection system. Failure of the gas detection system shall result in the deactivation of the heating system; activation of the mechanical ventilation system where the system is interlocked with the gas detection system; and initiation of a trouble signal to sound in an approved location.
3905.2 Emergency shutoff. Extraction processes utilizing¶
gaseous hydrocarbon-based solvents shall be provided with emergency shutoff systems in accordance with Section 5803.1.3.
39-4 2022 CALIFORNIA FIRE CODE
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CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE
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