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Labthink Instruments Co., Ltd.
Group: Labthink
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Labthink Instruments Co., Ltd. info@labthink.com +86-531-85068566 Film Gas Permeability Testing Methods Comparison Film permeability testing plays a crucial role in material and quality control for flexible packaging. This report focuses on two main test methods for auto gas permeability: differential pressure and equal pressure. Differential Pressure Method The differential pressure method is the established standard for scientific research due to its versatility and ability to test various gases. It operates by creating a pressure difference across the film sample. Two sub-methods exist within this category: Vacuum Process: This method utilizes a 0.1MPa pressure difference to measure gas transmission rate. High-precision vacuum gauges ensure accurate and repeatable measurements. Volume Method: This simpler and cheaper alternative eliminates the need for a vacuum state, making instrument manufacturing less complex.
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Labthink Instruments Co., Ltd. info@labthink.com +86-531-85068566 C106H Gas Permeability Test System is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheets, and metal foils at different temperatures. The test system conforms to GB, ISO, ASTM and other international standards. Equal Pressure Method Primarily used for oxygen permeation testing, the equal pressure method employs a...
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Labthink Instruments Co., Ltd. info@labthink.com +86-531-85068566 performance of films, sheets and related materials in the fields of food, medicine, medical devices, daily chemicals, photovoltaic, electronic and many others. Comparison and Conclusion The differential pressure method offers advantages in versatility, accuracy, and the ability to test various gases. However, the equal pressure method provides a simpler and potentially more cost-effective solution for specific oxygen permeability testing. Both methods have their limitations, and the choice depends on the specific testing...
Open the catalog to page 3All Labthink Instruments Co. catalogs and technical brochures
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Heat seal testing instrument3 Pages
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Motorized Pull Test Machine3 Pages
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Roll Tack Tester1 Pages
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Spot Thickness Measurement4 Pages
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micrometer per ASTM D3744 Pages
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table top thickness gauge12 Pages
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C611B Box Compression Tester2 Pages
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C610H Auto Tensile Tester3 Pages
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Handheld Headspace Analyzer2 Pages
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Oxygen Permeation Apparatus3 Pages
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Papier Abrieb-Testmaschine1 Pages
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Bottle Cap Leak Tester4 Pages
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torque meter for PET Bottles3 Pages
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box compression device5 Pages
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BOPP Tape Shear Tester3 Pages
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electrical torque meter5 Pages
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tape peeling tester5 Pages
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fogging testing machine5 Pages
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heat sealing testing machine5 Pages
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torque testing machine5 Pages
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rolling ball tack tester5 Pages
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hot tack tester5 Pages
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tape peel force tester5 Pages
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film thickness gauge5 Pages
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manual torque tester1 Pages
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opening torque tester2 Pages
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thickness gauge5 Pages
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vacuum leak testing machine2 Pages
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paper thickness measurement5 Pages
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fogging tester2 Pages
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digital torque gauge1 Pages
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material moisture monitor2 Pages
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Headspace Gas Analyzer1 Pages
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ROLLING BALL TESTER1 Pages
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BOX COMPRESSION TESTER1 Pages
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INK RUB TESTER1 Pages
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FOGGING TESTER2 Pages
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Film Shrinkage Tester1 Pages
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Film Pendulum Impact Tester1 Pages
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FALLING DART IMPACT TESTER1 Pages
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THICKNESS TESTER1 Pages
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TOQUE TESTER1 Pages
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Tearing Tester1 Pages
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Gas Permeability Tester1 Pages
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Oxygen Permeability Tester2 Pages
Archived catalogs
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Leak Tester2 Pages
