Adopting the pressure method of the US ASTM standards! A gas chromatograph is used for the separation and detection of permeable components.
The "GTR-11/31" is a gas permeability measurement device that adopts the ASTM method (pressure method) to separate and detect permeating components, utilizing the versatility of gas chromatography. Components separated in the column are detected using a thermal conductivity detector. The amount of permeation for each component is determined from a pre-established calibration curve, allowing for the calculation of permeability and permeance. With this device, you can widely apply it to testing packaging materials for food and pharmaceuticals, research on separation membranes and enrichment membranes, as well as in the research and development sectors for fibers, synthetic chemicals, and resins. 【Features】 ■ Long-standing track record ■ Simultaneous measurement of mixed gas permeability ■ High detection sensitivity ■ Easy handling and operation ■ Measurement possible at low temperatures (freezer option) ■ Automation via computer is also possible (optional) *For more details, please download the PDF or feel free to contact us.
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basic information
Standard Specifications Detection Method: Calibration curve method using gas chromatography TCD Number of Permeation Cells: 1 to 3 (GTR-11A: 1 cell, GTR-31A: 3 cells) Cell Material: SUS304 and fluorine rubber O-ring Permeation Area: GTR-10XA 15.2 cm² (φ44mm) ... adjustable Thickness of Test Specimen: Maximum 1mm (optional for 1-2mm, 2-3mm) Test Specimen Size: φ56mm Target Gases for Measurement: Dry single gases or mixed gases such as H2, O2, N2, CO2, CH4, etc. Test Gas Pressure: 0 to 600 kPa Permeation Coefficient Measurement Range: 10e-14 to 10e-6 cc·cm/cm²·sec·cmHg Permeability Measurement Range: 1 to 10000 cc/m²·24hr·atm Measurement Temperature Range: Near room temperature to 150℃ (constant temperature method. With optional refrigeration unit, 10℃ to) Others: Custom specifications are also available. Please consult us.
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Applications/Examples of results
=== Example of Measured Objects === Food packaging containers, cup noodle containers, frozen food containers Beverage containers (PET bottles, cans, bottles, etc.) Separation membranes Metals Rubber, resins, adhesives Glass Laminates
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Company information
Our company was established as a specialized manufacturer of "gas, water vapor, and liquid permeability measurement devices." Currently, we have expanded our offerings to include not only gas permeability but also water vapor permeability, as well as the permeability of VOC liquids using PV cells and the permeability of VOC vapors using T cells. Furthermore, we have developed new products such as the GC Shed (GC Shed: patented in Japan and the United States), which can measure the permeability of gases in tubes and pipes, as well as liquids like gasoline and VOCs; a permeability measurement device for electrolyte membranes used in fuel cells; a pinhole detection device for electrolyte membranes; and a permeability measurement device for Li-ion batteries and electrolytes, thereby broadening the application range of permeability measurement.