Gas permeability measurement device (differential pressure method)
Catalog No. 571
It is a device that measures the gas permeability (gas barrier properties) of plastic films and rubber sheets using the differential pressure method.
- Measures gas permeability (gas barrier properties) of plastic films and rubber sheets. - Adopts automatic valves for fully automated measurements. - Does not limit the type of measurement gas. - The measurement section supports two sizes of test specimens (measurement section diameters ∅30mm and ∅70mm). - Modular design of the measurement section allows for additional expansions. - Temperature error correction function for permeating gases. - Email function enables receipt of messages in case of errors or at the end of tests. - Measurements are executed while saving data, allowing for data analysis confirmation even during tests. - Options available for measuring diffusion coefficients, solubility coefficients, and hydrogen gas. - Utilizes a high-precision vacuum gauge with a reading accuracy of 0.25%. Reference Standards: JIS K7126-1, JIS K6403-3, ISO 15105-1, ISO 2782-1 (only for CT and BT types), ISO 7229 (only for CT and BT types), JIS K6275-1 (only for CT and BT types).
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basic information
■Number of test specimens: 1 or 3 ■Measurement range: Room temperature type (model CR type) or temperature-controlled type (10~90℃ hot water circulation type, model CT type) ■Test specimen dimensions: ・50×50mm (measuring area ∅30mm, transmission area 707mm²) ・90×90mm (measuring area ∅70mm, transmission area 3848mm²) ■Gas permeability measurement range (selectable) ・Type A: 4.5×10-15 to 4.5×10-12 [mol/(m2・s・Pa)] (0.1 to 100 [fm/(Pa・s)]) ・Type B: 4.5×10-14 to 4.5×10-11 [mol/(m2・s・Pa)] (1 to 1000 [fm/(Pa・s)]) ■Test gases: Oxygen, nitrogen, carbon dioxide, air, hydrogen* (*optional), etc. ■Test gas pressure: 0~200kPa ■Measurement items: Gas permeability, gas permeability coefficient (diffusion coefficient and solubility coefficient optional) ■Data processing and control: PC (with dedicated software) ■Air source: 0.4MPa (used during diffusion coefficient measurement) ■Options: ・Additional expansion module ・Diffusion coefficient measurement device ・Hydrogen gas measurement unit *In addition to the fully automatic models CR type and CT type mentioned above, BR type and BT type are also available.
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Applications/Examples of results
Evaluation of gas barrier properties of packaging materials.
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Company information
Toyo Seiki Seisakusho Co., Ltd. is a comprehensive manufacturer of various material testing machines and environmental testing equipment targeting fields such as plastics, rubber, paints, paper, and textiles. Since its establishment in 1934, we have been dedicated to "testing machines" and have supported our customers' research and development and quality control in various fields. We will continue to refine our technological capabilities and respond to our customers' needs. [Product Development Timeline] 1955: Thermoplastic Resin Fluidity Testing Machine 'Melt Indexer' 1960: Universal Material Testing Machine 'Strograph' 1963: Curing Testing Machine 'Oscillating Disk Rheometer (ODR)' 1970: Mixing and Extrusion Testing Equipment 'Laboplast Mill' 1982: Capillary Rheometer 'Capillograph'