Engineering Safety
For Oxygen, Hydrogen, and Other Hazardous Fluids
Nasa
Emerson
Essex
GE Healthcare
Linde
Generant
Air Liquide
Airgas
NREL
Lyondellbasell
NAVAIR
Flowserve
We Simplify Safety
We use innovative, data-driven tools to help clients understand, evaluate, and mitigate hazards and fire risks associated with oxygen, hydrogen, and other hazardous fluids.
Advanced Data-Driven
Safety Solutions
Failure Analysis
Discover incident root cause though data-driven analysis.
Hazard Analysis
Analyze and mitigate your risks before an incident can occur.
Testing
Test your materials and components for qualification, compatibility, and conformance.
Training
Equip your staff with cutting-edge oxygen safety training and customizable multi-level content.
Oxygen Cleaning
Outsource your precision oxygen cleaning to WHA or optimize your own process.
Subject Matter Experts
Over 35 years ago, our company founders brought their specialized oxygen expertise from NASA to the commercial sector. Today, hundreds of companies worldwide rely upon our services, including our cutting-edge Oxygen Fire Risk Analysis (OFRA) and Hydrogen Combustion Risk Analysis (HCRA) methods for systems and components.
We Write The Standards
Our engineers are intimately familiar with international standards governing the use of oxygen and other hazardous fluids, because they have helped write many of the standards, and routinely contribute to organizations such as ASTM, CGA, EIGA, NFPA, NASA, SAE, and ISO.
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countries servedArticles & Case Studies
Gwenael Chiffoleau Appointed Chair of ASTM Committee G04 on Oxygen Safety
WHA International is proud to announce that CEO Gwenael Chiffoleau, Ph.D., has been appointed Chair of ASTM…
Guide to ASTM G93-2025: A Risk-Based Update to Oxygen Cleanliness
ASTM G93 is a familiar reference for many engineers who work with oxygen systems. It’s often cited…
Case Study: Recreating High-Energy Cylinder Ruptures at Full Scale
Several years ago, personnel were unloading a high-pressure aluminum cylinder containing a reactive synthesis gas blend when…






