
Our Experience
Whether you are looking to outsource your oxygen precision cleaning needs or want to do it yourself, WHA will make sure it’s done right. We’ve been in the oxygen cleaning business for over 25 years, and our systems and methodology are informed by our research and extensive experience in oxygen system failure analysis, hazard analysis, and testing.
Our engineers are heavily involved in the creation of international oxygen cleaning standards, and WHA represents the technical contact for ASTM G93 (Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments).
WHA's cleaning of customer parts is certified by Perry Johnson Registrars, Inc. (PJR) according to ISO 9001:2015.
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Parts Cleaned Each Month0Day
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Types of Parts CleanedOxygen Precision Cleaning
Our state-of-the-art clean room and laboratories were custom-built to meet the rigorous demands of oxygen precision cleaning. Every day we receive parts from all over the world. Each one goes through our meticulous cleaning process to ensure that they are meeting the customer's requested cleaning specifications.
Quality control is of utmost importance, and we’re uniquely equipped to provide the extra step of oxygen cleanliness verification (OCV) to quantifiably demonstrate and certify parts to customer-requested cleanliness specifications.


Oxygen Cleanliness Evaluation
We offer our unique oxygen cleanliness verification (OCV) as a standalone service for clients who wish to test the cleanliness of their own parts, components, and systems. WHA draws from industry-recognized standards that outline techniques such as solvent extraction, gravimetric analysis, and particle counting/sizing to quantify cleanliness levels.
We can analyze your components and equipment in our laboratory or travel to your facilities to provide on-site contamination analysis. Identifying contamination sources is critical to ensuring and maintaining cleanliness. We use tools such as contamination mapping and material characterization to help locate contamination sources.
Process Review And Consulting
Our engineering staff offers both remote and on-site process review and consulting services. We’re happy to share our research and experience with you and can provide guidance on your process development and cleaning agent selection.
Our consulting services often go hand-in-hand with specialized training packages, equipping your team with the latest information and best practices in oxygen cleaning.

Latest Industry Insights
Case Study: Aluminum Oxygen Tank Fires Initiated by Impact
In recent years, several notable oxygen tank fires have occurred after a fall or sudden impact. WHA is actively investigating what went wrong.
Particle Impact Testing in Oxygen Supports Material Selection and Component Design
Particle impact testing helps determine the conditions required to ignite particulate contamination, materials, or components in oxygen service.
WHA to Participate in ASTM Particle Impact Ignition Workshop
WHA International will participate in a particle impact ignition workshop organized by the ASTM Committee G04 from April 25-26, 2023.