Historical
ANSI/ASME PVHO-1-2002
Safety Standard for Pressure Vessels for Human Occupancy
Provides requirements for the design, fabrication, inspection, testing, marking, and stamping of pressure vessels for human occupancy, hereafter called PHVOs or chambers. This Standard also provides requirements for the design, fabrication, inspection, testing, cleaning and certification of piping systems for PVHOs. A PVHO is a pressure vessel that encloses a human being within its pressure boundary while it is under internal or external pressure, regardless of the pressure magnitude. PVHOs include, but are not limited to, submersibles, diving bells, personnel transfer capsules, hyperbaric chambers, high altitude chambers and medical hyperbaric oxygen facilities. This does not include nuclear reactor containments, pressurized airplane and aerospace vehicle cabins, and caissons.
American Society of Mechanical Engineers [asme]