Gas Permeability Analyser - AUTO N50/1 - Hylec Controls

Gas Permeability Analyser - AUTO N50/1

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The AUTO N50/1 Gas Permeability Analyser is developed based on the differential pressure testing method, adhering to design standards such as ISO 2556 and other relevant specifications. Utilising high-precision pressure sensors and automatic differential pressure technology, this analyser achieves exceptional testing accuracy. Its distinctive drawer-type diaphragm test chamber enhances operational convenience, making it well-suited for diverse applications in the fields of food, medicine, medical equipment, daily chemistry, photovoltaic electronics, and more, specifically for gas permeability testing of films, sheets, paper, and packaging materials across a wide range of gas barrier properties.

Test Principle The AUTO N50/1 gas permeability analyser employs the differential pressure testing method. The sample, processed and placed between upper and lower cavities, undergoes vacuumisation by a vacuum pump. Subsequently, an atmospheric pressure experimental gas is introduced to the upper cavity, creating a constant pressure difference. Through pressure gradient influence, gas permeates from the upper to the lower cavity, enabling the system to calculate gas transmittance and other barrier performance parameters.

Standards GB/T 1038-2000, ISO 15105-1, ISO 2556, ASTM D1434, JIS K7126-1, YBB 00082003

Technical Parameters

  • Test Range: 0.01~5000 cm3/(m2·24 h·0.1 MPa)
  • Resolution: 0.0005 cm3/(m2·24 h·0.1 MPa)
  • Temperature Control Range: 15~60℃
  • Temperature Control Precision: ±0.1℃
  • Vacuum Degree: <20 Pa
  • Vacuum Resolution: 0.01 Pa
  • Test Pressure: 0.1 MPa
  • Test Gas: O2, CO2, N2, etc.
  • Permeability Surface Area: 50.24 cm2
  • Specimen Size: Φ110 mm
  • Specimen Thickness: ≤2 mm
  • Sample Quantities: 1 Pcs
  • Instrument Size: 400 mm (L) x 560 mm (W) x 305 mm (H)
  • Test Pressure: 10 kPa-210 kPa (Set arbitrarily)
  • Power: 450 W
  • Power Supply: AC 220V, 50Hz


  • Unique Cavity Design for Convenience The upgraded vertical drawer cavity design offers one-key opening and closing convenience. The fully automatic pneumatic clamp ensures easy sample clamping with excellent sealing performance.
  • Patented Core Technology for Accuracy Patented automatic differential pressure maintaining technology ensures pressure difference maintenance (optional pressure levels) with a built-in high-precision pressure sensor boasting a 0.01 Pa resolution. Water cooling temperature control technology, imported original temperature sensor, and automatic temperature adjustment ensure precision to 0.1 ℃. Equipped with an imported vacuum pump, achieving an ultimate pressure of 0.1 Pa with high efficiency and low noise.
  • Wide Range and High Applicability The single-cavity instrument with a measurement accuracy of 0.001 cm3/(m2·24 h·0.1 MPa) covers a broad measurement range of 0.02~50000 cm3/(m2·24 h·0.1 MPa), meeting testing requirements for high, medium, and low barrier materials. With additional accessories, it accommodates gas permeation testing for bottles, bags, bowls, and other packaging, supporting various gases like oxygen, carbon dioxide, nitrogen, and air.
  • Excellent Appearance with Real-Time Visualisation Artistic design with ergonomic and technical aesthetics considerations, featuring exquisite 3D printed shells, smooth lines, and a fashionable appearance. Fully automatic operation with one-key test, automatic judgment, and automatic shutdown. Real-time display of five sets of curves, including transmittance-time, temperature-time, upper chamber pressure-time, lower chamber pressure-time, differential pressure change-time, with preview and hide functions.
  • Intelligent Operating System with Global Certification Self-developed intelligent operating system with modular icons, stylish color matching, user-friendly settings, and intuitive operation. Compliant with GMP appendix computer system design, allowing flexible test process parameter settings. Features audit trail functionality for log tracking and test tracking, meeting data traceability needs. Adjustable system operation authority levels. Enables intelligent statistical analysis and supports multiple data standard deviation analyses. Expandable system capabilities, including integration with laboratory LIMS systems. Personalized test reports can be configured, supporting multiple data output formats, electronic signatures, and online submission of audit reports. Globally certified, with language settings available in Chinese and English.
  • Professional Calibration Services for Accuracy Company-approved and issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. Holds the "National Standard Material Grading Certificate" and the "Manufacturing Measuring Instrument License of the People's Republic of China" (standard number: GBW(E) 130541 / GBW(E) 130542). Calibration and verification conducted using national standard materials ensure accuracy, versatility, and authority of test data.
  • Laboratory Intelligent IoT Platform Connects to the IoT platform for digital network management. Allows remote login and authorisation to the instrument software interface for managing experimental data and remote fault diagnosis. Customers can independently download required instrument information, documents, and operation videos from the platform.

Application Area

  • Film: Suitable for air permeability testing of various plastic films, plastic composite films, paper-plastic composite films, co-extrusion films, aluminum plating films, aluminum foil, aluminum foil composite films, and other materials.
  • Sheet: Appropriate for gas permeability testing of various plastic films (PP/PET/PE/PVC/BOPP/CPP, etc.), plastic composite films, paper-plastic composite films, metal composite films, co-extrusion films, aluminised films, degradable packaging films (PLA/PBAT /PBS, etc.), and other film-like materials.
  • Paper and Cardboard: Gas permeability testing of paper and cardboard, including coated paper, carbon paper, silicone paper, aluminised paper, paper-aluminum-plastic composite sheets, etc.
  • Medicinal Stickers, Warm Stickers: Gas permeability testing of medical plaster therapeutic patches, warm patches, dysmenorrhea patches, etc.
  • Hygiene Products: Gas permeability testing of sanitary napkins, pads, and other sanitary products.
  • Package: Gas permeability testing of wine bottles, cola bottles, peanut oil barrels, Tetra Pak packaging, vacuum packaging bags, three-piece cans, cosmetic packaging, toothpaste tubes, jelly cups, yogurt cups, and other plastic, rubber, paper, paper-plastic composite, glass, metal bottles. Gas permeability testing of bags, cans, boxes, barrels.
  • Different Kinds of Gases: Suitable for permeability testing of various gases, including oxygen, carbon dioxide, nitrogen, air, helium, etc.