Gas Permeability Analyser N500L - Hylec Controls

Gas Permeability Analyser N500L

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The N500L Gas Permeability Analyser operates on the principles of the differential pressure method, meticulously designed and manufactured with adherence to ASTM D1434, ISO 2556, and other standards. It incorporates a high-precision pressure sensor and automatic differential pressure maintaining technology, ensuring exceptional test accuracy. Tailored for applications in the food, medicine, medical equipment, daily chemicals, photovoltaic electronics, and other industries, this analyser facilitates efficient gas permeability testing of films, sheets, paper, packaging, and related materials. It excels in testing high, medium, and low gas barrier materials.

Test Principle The N500 gas permeability tester adopts the differential pressure method. It involves placing the processed sample between upper and lower chambers, evacuating the entire gas circuit system using a vacuum pump, and then introducing an atmospheric pressure experimental gas to the upper chamber. This creates a constant pressure difference between the upper and lower chambers, allowing gas to permeate from the upper to the lower cavity through the film. The system calculates barrier performance parameters, including the gas permeability of the sample, based on the pressure change in the lower cavity.

Standards ASTM D1434, ISO 2556, ISO 15105-1, JIS K7126-1

Technical Specifications

  • Test Range: 0.02~50000 cm3/(m2·24 h·0.1 MPa)
  • Resolution: 0.001 cm3/(m2·24 h·0.1 MPa)
  • Temperature Control Range: 15~60℃
  • Temperature Control Accuracy: ±0.1℃
  • Degree of Vacuum: <20 Pa
  • Vacuum Resolution: 0.01 Pa
  • Test Pressure: 0.1 MPa
  • Test Gas: O2, CO2, N2, etc.
  • Test Area: 50.24 cm2
  • Sample Size: Φ110 mm
  • Specimen Thickness: ≤2 mm
  • Number of Samples: 1 piece
  • Power: 450 W
  • Power Supply: AC 220 V, 50 Hz

Product Features

  • Patented Core Technology for Efficient and Accurate Testing

    1. Patented automatic differential pressure maintaining technology with adjustable pressure difference maintenance.
    2. Built-in high-precision pressure sensor with 0.01 Pa resolution, ensuring stability and low failure rates.
    3. Water-cooled temperature control technology with an imported original temperature sensor, achieving automatic temperature adjustment with an accuracy of 0.1 ℃.
    4. Original imported vacuum pump with an ultimate pressure of 0.1 Pa, providing high vacuum efficiency with low noise.
  • Meeting Test Requirements of Wide Range and High Applicability

    1. Equipped with a single cavity, ensuring a measurement accuracy of 0.001 cm3/(m2·24 h·0.1 MPa).
    2. Broad measurement range of 0.02~50000 cm3/(m2·24 h·0.1 MPa), addressing testing needs for high, medium, and low barrier materials.
    3. Additional matching accessories enable the measurement of gas permeation in bottles, bags, bowls, and other packaging. Simultaneously, it supports permeability testing of different gases such as oxygen, carbon dioxide, nitrogen, and air.
  • Excellent Appearance, Convenient Control, Real-time Visualization of Curves

    1. Artistically designed with exquisite 3D printed shells, smooth lines, and a fashionable aesthetic.
    2. Fully automatic operation with a one-key test, automatic judgment, and automatic shutdown.
    3. Real-time display of five sets of curves, including transmittance-time, temperature-time, upper chamber pressure-time, lower chamber pressure-time, and differential pressure change-time. The curves support preview and hide functions.
  • Offline or Online Test The instrument has its own operating system, allowing independent sample testing without a computer connection, with data processed automatically. It also features a computer interface for online testing.

  • Smart Operating System, Recognised Globally

    1. Global certification for the smart operating system.
    2. Self-developed intelligent operating system with modular icons, fashionable color matching, and user-friendly settings for intuitive and convenient operation.
    3. Designed according to GMP appendix computer system standards, offering flexible settings for test process parameters to meet various standard requirements.
    4. Includes an audit trail function for data traceability, with system operation authority adjustable to different levels.
    5. Intelligent statistical analysis, supporting standard deviation analysis of multiple data. Additionally, the system is expandable, allowing integration with laboratory LIMS systems.
    6. Personalised test reports can be configured as needed, supporting data output in multiple formats.
    7. Holds global strength certification, with Chinese and English language settings.
  • Laboratory Intelligent IoT Platform

    1. Connects to the IoT platform for network digital management.
    2. Allows remote login to the IoT platform for managing experimental data, remote diagnosis, and troubleshooting.
    3. Customers can independently download required instrument information, documents, and operation videos from the platform.


  • Film: Gas permeability test for film materials, including plastic films (PP/PET/PE/PVC/BOPP/CPP, etc.), plastic composite films, paper-plastic composite films, metal composite films, co-extruded films, aluminised films, and degradable packaging films, etc.
  • Sheet: Gas permeability test for solid pharmaceutical hard sheets (PP/PVC/PTP, etc.), metal composite sheets, rubber sheets, and other sheet materials.
  • Paper and Cardboard: Gas permeability test for paper and cardboard, including coated paper, carbon paper, silicone paper, aluminised paper, paper-aluminum-plastic composite sheets, etc.
  • Medicinal Stickers, Warm Stickers: Gas permeability test for medical plaster treatment patches, warm patches, dysmenorrhea patches, and other patches.
  • Hygiene Products: Gas permeability test for sanitary napkins, pads, and other sanitary products.
  • Package: Gas permeability test for 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, bags, cans, boxes, barrels.
  • Various Gases: Suitable for permeability testing of various gases, including oxygen, carbon dioxide, nitrogen, air, helium, etc.