The 1st group of Labthink Webinars of 2024 was held successfully in March

MEDFORD, Mass. - April 3, 2024 - PRLog -- Mr. Martin Bryant, Sales Director of Labthink International, Inc. was the lecturer, and he gave a wonderful presentation.

Mr. Martin Bryant introduced the definition and significance of permeation test with vivid examples. Then, he briefly introduces the historical development of permeation testers. Based on Labthink's research capability and his profound experiences, Martin provided methods on how to choose the right permeability tester.

In the Q&A session, participants discussed many questions enthusiastically with Labthink technicians. Even after the meeting, more questions continued to come up. Those questions had to be answered after the webinar.

Options for Gas Permeation Measurement

When selecting a gas permeation tester, the initial step is to identify the gas being tested. Here are some recommendations based on the type of gas:

• If O2 is the only gas to be tested, the company can choose either the Coulometric Method or Manometric Method.
• As to other gases, it should be Manometric Method only.
• If both 02 and other gases are to tested, it should be the Manometric Method only.

Options for Water Vapor Permeation Measurement

For Water Vapor Permeation Measurement, there are 4 different testing methods. Usually, the first step is to check the industry of the user company. Standards applicable to different industries have basic regulations.

Different methods have their most efficient testing ranges.

• For Ultra High Barrier materials, lower than 0.001 g/(m2•day), Electrolytic Sensor Method is more recommended.
• For High Barrier materials, from from 0.001 to 40 g/(m2•day), it would be better to choose the Infrared Sensor Method.
• For Medium & Low Barrier materials, it is suggested to choose the Gravimetric Method & Humidity Sensor Methods.

Other Considerations – Combo Tester

In addition to test gas, industry, and test range, there are many other factors that affect the user's choice. Such as the tester levels, usually we have high level and entry level testers, which are classified not only by the number of cells, but also by the tester's performance.

At the same time, based on user company's needs, Labthink has also developed Combo tester, such as 2-in-one or 3-in-one tester, that is, multiple test items can be performed within one tester. This kind of combo tester was newly developed and was introduced in a previous seminar: Sensor Packs.
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