§ 5467. Safety Relief Devices.

Latest version.

(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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