What are standards? A standard is a set of technical definitions, instructions, and guidelines for designers, manufacturers, users, inspectors, government agencies, etc., that are used to promote safety, reliability, efficiency, uniformity, and interchangeability for a wide-variety of engineering disciplines.
Used for pressure vessels that encloses a human being, which includes submersibles, diving bells, personnel transfer capsules, decompression chambers, recompression chambers, hyperbaric chambers, high altitude chambers, and medical hyperbaric oxygenation facilities.
For more information, visit PVHO-1 on ASME.org.