14 C.F.R. § 23.1451 Fire protection for oxygen equipment.
Title 14 - Aeronautics and Space
Oxygen equipment and lines must: (a) Not be installed in any designed fire zones. (b) Be protected from heat that may be generated in, or escape from, any designated fire zone. (c) Be installed so that escaping oxygen cannot come in contact with and cause ignition of grease, fluid, or vapor accumulations that are present in normal operation or that may result from the failure or malfunction of any other system. [Doc. No. 27806, 61 FR 5170, Feb. 9, 1996]
Title 14: Aeronautics and Space
PART 23—AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Subpart F—Equipment
Miscellaneous Equipment
§ 23.1451 Fire protection for oxygen equipment.