California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 7 - General Industry Safety Orders
Group 20 - Flammable Liquids, Gases and Vapors
Article 138 - Hydrogen
Section 5467 - Safety Relief Devices

Universal Citation: 8 CA Code of Regs 5467

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

(a) Hydrogen containers shall be equipped with safety relief devices as required by the ASME Code or the DOT Specification and Regulations under which the container is fabricated.

(b) Safety relief devices shall be arranged to discharge upward and unobstructed to the open air in such a manner as to prevent any impingement of escaping gas upon the container, adjacent structures or personnel. This requirement does not apply to DOT Specification containers having an internal volume of 2.0 cubic feet or less.

(c) Safety relief devices or vent piping shall be designed or located so that moisture cannot collect and freeze in a manner which would interfere with proper operation of the device.

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