26 September 2006
Conform hyperbaric chambers to NFPA 99, Chapter 20. Incorporate criteria
contained in the following documents into the design of hyperbaric chambers.
UFC 4-159-01N, Hyperbaric Facilities.
SS 521-AA-MAN-010, U.S. Navy, Diving and Manned Hyperbaric
Systems Safety Certification Manual.
Hypobaric Chambers .
Conform hypobaric chambers to NFPA 99B, Hypobaric Facilities.
Protect anechoic chambers in accordance with FM Global Data Sheet 1-53,
LIQUID OXYGEN (LOX).
Fixed Liquid Oxygen Tanks.
Use fixed tanks having combined capacity of 380 L (100 gal) or less and portable
tanks conforming to NFPA 51, Design and Installation of Oxygen-Fuel Gas
Systems for Welding, Cutting, and Allied Processes, and NFPA 99.
Exception: As modified in paragraph 6-20.2.
Oxygen Bulk Tanks.
Use fixed bulk tanks having a single or combined capacity of more than 380 L
(100 gal) that conform to NFPA 55, Standard for the Storage, Use, and Handling
of Compressed Gases and Cryogenic Fluids in Portable and Stationary
Containers, Cylinders, and Tanks and NFPA 99.
Exception: As modified in paragraph 6-20.3.
Separation Distances for LOX Tanks and Carts.
Separation distances for LOX tanks and carts are as follows:
A minimum of 30.5 m (100 ft) from aircraft parking, fueling, or
A minimum of 30.5 m (100 ft) from any flammable or combustible
liquids handling, servicing, processing, or storage area.
A minimum of 15.3 m (50 ft) from any buildings of Type III, IV, or V