This single unit can measure the gas permeability of H2, O2, N2, CO2, etc., under dry and humid conditions, as well as the water vapor permeability.
This device can measure the permeability and moisture permeability of gases and vapors under humid conditions using the differential pressure gas chromatography method specified in JIS K 7126-1. It introduces the gases and water vapor that have permeated through the film into the column of a gas chromatograph, where they are separated by component, allowing for the measurement of permeability and transmission rates for each component. It is a device that can evaluate the barrier properties of gases and water vapor in one unit.
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basic information
Standard Specifications Detection Method: Calibration curve method using gas chromatography TCD Number of Transmission Cells: 1 to 3 (GTR-10X: 1 cell, GTR-30X: 3 cells) Cell Material: SUS304 and fluorine rubber O-ring Transmission Area: GTR-10XA 15.2 cm² (φ44mm) ... adjustable Thickness of Test Specimen: Maximum 1mm (optional for 1-2mm, 2-3mm) Size of Test Specimen: φ56mm Target Gases for Measurement: Single gases or mixed gases such as H2, O2, N2, CO2, CH4, etc., gases under humid conditions, water vapor Test Gas Pressure: 0 to 600 kPa (during dry measurement) Transmission Coefficient Measurement Range: 10e-14 to 10e-6 cc·cm/cm²·sec·cmHg Permeability Measurement Range: 1 to 10000 cc/m²·24hr·atm Moisture Permeability Measurement Range: 0.01 to 500 g/m²·24hr Measurement Temperature Range: Near room temperature to 150℃ (constant temperature method. With optional refrigeration unit, from 10℃) During humid measurement, water tank temperature range of 80℃ (reference: 80℃ 90% RH, 85℃ 85% RH) 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.) Fuel tubes and tanks Separation membranes Waterproof clothing Polymer electrolyte membranes for fuel cells Lithium-ion batteries Metals Rubber, resins, and adhesives Glass Laminates
Line up（2）
| Model number | overview |
|---|---|
| GTR-10XA/30XA | Differential pressure gas and water vapor permeability measurement device |
| GTR-11A/31A | Differential pressure gas permeability measurement device |
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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.
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