49 C.F.R. § 173.302 Filling of cylinders with nonliquefied (permanent) compressed gases.
Title 49 - Transportation
Link to an amendment published at 71 FR 33883, June 12, 2006. (a) General requirements. A cylinder filled with a nonliquefied compressed gas (except gas in solution) must be offered for transportation in accordance with the requirements of this section and §§173.301, 173.301a, 173.302a, and 173.305, as applicable. Where more than one section applies to a cylinder, the most restrictive requirements must be followed. (b) Aluminum cylinders in oxygen service. Each aluminum cylinder filled with oxygen must meet all of the following conditions: (1) Metallic portions of a valve that may come into contact with the oxygen in the cylinder must be constructed of brass or stainless steel. (2) Each cylinder opening must be configured with straight threads only. (3) Each cylinder must be cleaned in accordance with the requirements of GSA Federal Specification RR-C-901C, paragraphs 3.3.1 and 3.3.2 (IBR, see §171.7 of this subchapter). Cleaning agents equivalent to those specified in Federal Specification RR-C-901C may be used provided they do not react with oxygen. One cylinder selected at random from a group of 200 or fewer and cleaned at the same time must be tested for oil contamination in accordance with Federal Specification RR-C-901C, paragraph 4.4.2.2, and meet the specified standard of cleanliness. (4) The pressure in each cylinder may not exceed 3000 psig at 21 °C (70 °F). (c) Notwithstanding the provisions of §173.24(b)(1), an authorized cylinder containing oxygen continuously fed to tanks containing live fish may be offered for transportation and transported. (d) Shipment of Division 2.1 materials in aluminum cylinders is authorized for transportation only by motor vehicle, rail car, or cargo-only aircraft. [67 FR 51646, Aug. 8, 2002, as amended at 67 FR 61289, Sept. 30, 2002; 68 FR 75745, Dec. 31, 2003]
Title 49: Transportation
PART 173—SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS
Subpart G—Gases; Preparation and Packaging
§ 173.302 Filling of cylinders with nonliquefied (permanent) compressed gases.
