49 CFR 173.168 - Chemical oxygen generators.

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§ 173.168 Chemical oxygen generators.
An oxygen generator, chemical (defined in § 171.8 of this subchapter) may be transported only under the following conditions:
(a) Approval. A chemical oxygen generator that is shipped with an explosive or non-explosive means of initiation attached must be classed and approved by the Associate Administrator in accordance with the procedures specified in § 173.56 of this subchapter.
(b) Impact resistance. A chemical oxygen generator, without any packaging, must be capable of withstanding a 1.8 meter drop onto a rigid, non-resilient, flat and horizontal surface, in the position most likely to cause actuation or loss of contents.
(c) Protection against inadvertent actuation. A chemical oxygen generator must incorporate one of the following means of preventing inadvertent actuation:
(1) A chemical oxygen generator that is not installed in protective breathing equipment (PBE):
(i) Mechanically actuated devices:
(A) Two pins, installed so that each is independently capable of preventing the actuator from striking the primer;
(B) One pin and one retaining ring, each installed so that each is independently capable of preventing the actuator from striking the primer; or
(C) A cover securely installed over the primer and a pin installed so as to prevent the actuator from striking the primer and cover.
(ii) Electrically actuated devices: The electrical leads must be mechanically shorted and the mechanical short must be shielded in metal foil.
(iii) Devices with a primer but no actuator: A chemical oxygen generator that has a primer but no actuating mechanism must have a protective cover over the primer to prevent actuation from external impact.
(2) A chemical oxygen generator installed in a PBE must contain a pin installed so as to prevent the actuator from striking the primer, and be placed in a protective bag, pouch, case or cover such that the protective breathing equipment is fully enclosed in such a manner that the protective bag, pouch, case or cover prevents unintentional actuation of the oxygen generator.
(d) Packaging. A chemical oxygen generator and a chemical oxygen generator installed in equipment, (e.g., a PBE) must be placed in a rigid outer packaging that—
(1) Conforms to the requirements of either:
(i) Part 178, subparts L and M, of this subchapter at the Packing Group I or II performance level; or
(ii) The performance criteria in Air Transport Association (ATA) Specification No. 300 for a Category I Shipping Container.
(2) With its contents, is capable of meeting the following additional requirements when transported by cargo-only aircraft:
(i) The Flame Penetration Resistance Test specified in Appendix E to part 178 of this subchapter.
(ii) The Thermal Resistance Test specified in Appendix D to part 178 of this subchapter.
(e) Equipment marking. The outside surface of a chemical oxygen generator must be marked to indicate the presence of an oxygen generator (e.g., “oxygen generator, chemical”). The outside surface of equipment containing a chemical oxygen generator that is not readily apparent (e.g., a sealed passenger service unit) must be clearly marked to indicate the presence of the oxygen generator (example: “Oxygen Generator Inside”).
(f) Items forbidden in air transportation.
(1) A chemical oxygen generator is forbidden for transportation on board a passenger-carrying aircraft.
(2) A chemical oxygen generator is forbidden for transportation by both passenger-carrying and cargo-only aircraft after:
(i) The manufacturer's expiration date; or
(ii) The contents of the generator have been expended.
[72 FR 4455, Jan. 31, 2007, as amended at 72 FR 55097, Sept. 28, 2007; 74 FR 2259, Jan. 14, 2009; 74 FR 53188, Oct. 16, 2009; 76 FR 56316, Sept. 13, 2011]

Title 49 published on 2013-10-01

The following are only the Rules published in the Federal Register after the published date of Title 49.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-08-06; vol. 79 # 151 - Wednesday, August 6, 2014
    1. 79 FR 46012 - Hazardous Materials: Transportation of Lithium Batteries
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Final rule.
      Effective Date: August 6, 2014. Voluntary Compliance Date: Voluntary compliance with all amendments is authorized August 6, 2014. Delayed Compliance Date: Unless otherwise specified, compliance with the amendments adopted in this final rule is February 6, 2015. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of August 6, 2014.
      49 CFR Parts 171, 172, 173, 175

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United States Code

Title 49 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR 173 after this date.

  • 2014-08-25; vol. 79 # 164 - Monday, August 25, 2014
    1. 79 FR 50742 - Hazardous Materials: Harmonization With International Standards (RRR)
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Notice of proposed rulemaking (NPRM).
      Comments must be received by October 24, 2014.
      49 CFR Parts 171, 172, 173, 175, 176, 178, and 180