Oxygen Permeability Tester of Contact Lens
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Catalog excerpts

Oxygen Permeability Tester of Contact Lens - 1

Oxygen Transmission Rate Tester Plastic films and aluminum foils are most used as packaging because they have a good oxygen barrier property to protect the content in the packages from being oxidized by the oxygen in air during its shelf life. Labthink OX2/230 Oxygen transmission rate tester is a professional instrument to measure oxygen transmission rate (OTR) of flexible barrier packaging materials. It is designed according to ASTM D3985 Standard Test Method for Oxygen Gas Transmission Rate through Plastic Film and Sheeting Using a Coulometric Sensor. Using this oxygen transmission rate tester, nitrogen is flushed through a chamber where the film sample has been placed. The film in the chamber separates the nitrogen on one side from the oxygen on the other side. Oxygen molecules move through the film to the low pressure side, with the film barrier determining the rate of the oxygen transmission. A coulometric sensor placed on the outgoing nitrogen side measures this rate of oxygen transmission. This oxygen transmission rate tester is applicable in oxygen transmission rate testing of Plastic films, high barrier materials, sheeting, laminated films, foils, paper and paper board, plastic tubes and bottles. OX2/230 oxygen transmission rate tester has the following unique features: Controlled by computer with professional software

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Oxygen Permeability Tester of Contact Lens - 2

Previous testing data is saved for reference, inquiry and comparison Adjustable temperature and humidity testing environment Three testing cells in one instrument These three cells can do independent tests with different specimens. This is a patent of Labthink. And this design can not only increase testing efficiency but also make the results more accurate. Can be easily connected to 9 satellite systems. These 9 satellite systems can be oxygen transmission testing systems or water vapor transmission rate testing systems.

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Oxygen Permeability Tester of Contact Lens - 3

Reference Films are available Technical Specifications Specifications Test Range Temperature Range Temperature Accuracy Humidity Range Humidity Accuracy Test Gases Specimen Thickness Instrument Size ASTM D3985 -- Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor. ASTM F2622 -- Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using Various Sensors ASTM F1307 -- Standard Test Method for Oxygen Transmission Rate Through Dry Packages Using a Coulometric Sensor ASTM F1927 -- Standard Test...

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