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2024 1st Labthink Webinar
 
The 1st group of Labthink Webinars of 2024 was held successfully in March. Three respective webinars were held via Zoom Meeting, of which, one was on Mar. 19th for Asian customers, one was on Mar. 20 for European customers, and one was on Mar.27 for American customers. About 200 industrial participants attended our webinars.
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:
 
check   If O2 is only the gas to be tested, the company can choose either Coulometric Method or Manometric Method.
check   As to other gases, it should be Manometric Method only.
check   If Both O2 and other gases are to be tested, it should be Manometric Method only.
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For Gas Permeation Measurement, if test gas is confirmed, it means the test method is confirmed. The second step is to check the test range. Different methods have their respective testing ranges.
 
check   For High barrier materials, lower than 0.1 cm3/(m2?d), should choose Coulometric Method
check   For Medium barrier materials, from 0.1-200cm3/(m2?d), it can choose both
check   For low barrier materials, higher than 200cm3/(m2?d), it would be better to choose Manometric Method.
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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. For examples:
 
Industry of the user company Standards Applicable
Food & Pharmaceutical industry the most common industry of water vapor permeation measurement. Although there is no clear industry standard dictating which method to use, there is industrial practice, that is, most industrial customers prefer to choose Infrared Sensor Method.
Electronic, Solar Panels & OLED industries since the transmission rate is extremely low, it is more likely to choose Electrolytic Sensor Method. Because this method of sensor can detect water vapor at a very low level.
Building Materials & Waterproof Textiles Those industries have clear industry practices specifying the use of Gravimetric Method.
 
Those industry choices are not blindly selected, and are based on corresponding material properties and characteristic analysis of test methods. Just like that of Gas Permeation Measurement, the second step is to check the test range. Different methods have their most efficient testing ranges.
check   for Ultra high Barrier materials, lower than 0.001 g/(m2.day), Electrolytic Sensor Method is more recommended.
check   For High Barrier materials, from 0.001 to 40 g/(m2.day), it would be better to choose Infrared Sensor Method.
check   For Medium & Low Barrier materials, it is suggest to choose Gravimetric Method & Humidity Sensor Methods.
 
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Other Conditions - Combo Tester
 
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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.
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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.
 
If you want to know more, please contact the local regional sales manager , or you may contact me directly.