Recommended Practice on Materials, Equipment, and Systems Used in Oxygen-Enriched Atmospheres
What is NFPA 53?
NFPA 53 establishes recommended criteria for the safe use of oxygen (liquid/gaseous) and the design of systems for use in oxygen and oxygen-enriched atmospheres (OEAs).
Official document scope
What does NFPA 53 address?
Recommendations are provided for the selection of materials and components, design of new systems, and fire extinguishment associated with OEAs. Applications include gas and compressed air supplies, spaceflight operations, industrial processes, welding applications, self-contained breathing apparatus (SCBA), self-contained underwater breathing apparatus (SCUBA), medical applications, underwater tunneling and caisson work, and commercial and military aviation.
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