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5302.1 Definitions.
The following terms shall, for the purposes of this chapter and as used elsewhere in this code, have the meanings set forth in FC 202.
COMPRESSED GAS.
Nonliquefied compressed gases.
Liquefied compressed gases.
Compressed gases in solution.
Compressed gas mixtures.
COMPRESSED GAS CONTAINER.
COMPRESSED GAS SYSTEM.
HYPERBARIC FACILITY.
NESTING.
TUBE TRAILER.
5303.1 Containers.
Compressed gas containers shall comply with the requirements of this section. Compressed gas containers that are not designed for refillable use shall not be refilled after use of the original contents. Compressed gas containers that are partially full or contain residual fumes or vapors shall be considered as full for the purposes of complying with the requirements of this chapter.
5303.1.1 Design and construction.
Compressed gas containers shall be designed, fabricated, tested, marked with the specifications of manufacture and maintained in accordance with Section VIII of the ASME Boiler and Pressure Vessel Code, or the regulations of the United States Department of Transportation, as set forth in 49 CFR Parts 100-180.
5303.1.2 Pressure relief devices.
Pressure relief devices shall be designed in compliance with the requirements of FC 5303.1.2.1 through 5303.1.2.4.
5303.1.2.1 Where required.
Containers and tanks for compressed gas storage shall be provided with pressure relief devices designed in accordance with CGA S-1.1, CGA S-1.2, CGA S-1.3, or Section VIII of the ASME Boiler and Pressure Vessel Code, as applicable, to protect such containers and tanks from rupture in the event of overpressure.
5303.1.2.2 Size.
Pressure relief devices shall be sized in accordance with the specifications to which the container was fabricated and to material-specific requirements, as applicable.
5303.1.2.3 Arrangement.
Pressure 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.
Exception: DOTn specification containers having an internal volume of 30 SCF (0.855 m
3) or less.
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