It is a device for measuring the gas permeability (gas barrier properties) of materials such as plastic films and rubber sheets using the differential pressure method.
- Measures the gas permeability (gas barrier properties) of materials such as plastic films and rubber sheets. - Adopts an automatic valve 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 permeated gases. - Email functionality enables receipt of messages in case of errors or at the end of tests. - Measurements are executed while saving data, allowing for data analysis and confirmation even during the test. - 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, ASTM D1434, ISO 2782-1 (only applicable to CT type), ISO 7229 (only applicable to CT type), JIS K6275-1 (only applicable to CT type).
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basic information
■Number of test specimens: 1 or 3 ■Measurement range: Room temperature type (model CR) or temperature-controlled type (10~90°C, hot water circulation type, model CT) ■Test specimen dimensions: ・50×50mm (measurement area ∅30mm, transmission area 707mm²) ・90×90mm (measurement 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
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Applications/Examples of results
Evaluation of gas barrier properties of packaging materials.
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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 founding in 1934, we have been dedicated to "testing machines" and have supported our customers' research and development and quality control across various fields. We will continue to refine our technical capabilities and respond to our customers' needs. 【Product Development Timeline】 1955: Thermoplastic Resin Fluidity Tester 'Melt Indexer' 1960: Universal Material Testing Machine 'Strograph' 1963: Curing Tester 'Oscillating Disk Rheometer (ODR)' 1970: Mixing and Extrusion Testing Equipment 'Lab Plastmill' 1982: Capillary Rheometer 'Capillograph'