The Pioneer of Modern Leak Testing

Leak Testing Training Service

Anyone using leak testing instrumentation on production lines for inspecting components or assemblies for leaks and/or flow rates can now achieve both higher quality and efficiency operations through improved training offered at no-charge by Uson.

Our hands-on leak testing training sessions are held in various Uson worldwide locations and in

Leak Testing to the Power of Ten ( LT10)


Leak testing has come a long way since 1963 when Uson was founded, and like most new industries the rate of innovation was fast at first. New and improved leak testers were regularly being introduced as more and more applications arose for our products and technology. Although we continue to

No More Monday Blues For Leak Testers

Anyone reading this who is involved in the leak testing of flexible packages will be familiar with the methylene blue dye leak test. For years it has been the go to test for detecting leaks in flexible packaging – foil or laminate pouches, bags, blister packs, lidded trays, flow wrap

The Pursuit of Excellence.

“We are what we repeatedly do. Excellence, therefore, is not an act but a habit.”

— Aristotle

I came across this quotation recently and it quickly struck me how it relates to quality assurance. And so, with it being the beginning of a new year, this post is rather more

Leaks in Perspective.

In this post I thought we might try to put hole sizes,leaks, and leak rates in perspective. Much continues to be written about determining realistic leak specifications and the chestnut of the “no leakage permitted” type of specification is still commonly encountered.

Looking through some old training material I thought

How to Convert Bubbles to Flow Units

Probably the simplest type of leak test is still the dunk test wherein a part is connected to an air supply and held underwater while the operator looks for bubbles. Of course the disadvantages of this method are well known and technology has introduced non-destructive and more objective tests. As

Leak Testing Medical Devices Is Not For The Faint of Heart.

I think I have said this before; medical devices can present some of the greatest challenges in leak testing. That’s kind of ironic in a way, since they are often among the smallest things we are asked to test. The sheer variety is mind boggling. You can easily be forgiven for wondering where they all go with a visit to just one manufacturer.

Because they perform vital often life saving functions, it’s no surprise that testing them correctly is vital. If even one bad part reaches a patient the consequences can be catastrophic. This leads us to the first challenge:-

One hundred percent inspection

In some industries although the quality engineer seeks perfection there can exist a compromise between inspection and throughput by using statistical sampling methods. In the medical device industry perfection and production objectives must be met without compromise. Therefore fast, one hundred percent inspection is expected and it demands multi channel leak testers as well as accurate and reliable fixturing.

Everybody knows that medical device manufacturing is a highly regulated industry. It’s for the safety and peace of mind of patients, not just in the USA, but around the world. No one would argue that’s not a good thing. However, it brings with it ever increasing requirements for capturing and storing data. Some devices are serial numbered, chipped, or bar-coded and that brings us to the next challenge:

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