Water Vapour Permeability Analyser for Flexible Barrier Sheet Materials Test W203 2.0 - Hylec Controls

Water Vapour Permeability Analyser for Flexible Barrier Sheet Materials Test W203 2.0

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The W203 2.0 Water Vapour Permeability Analyser, crafted based on the electrolytic sensor method, is meticulously developed to adhere to GB/T 21529, ISO15106-3 standards. This analyser is tailored for assessing the water vapour transmission performance of films, sheets, papers and various materials across diverse industries such as food, medicine, medical equipment, daily chemicals and photovoltaic electronics. Whether utilised offline or online, it stands as an ideal configuration instrument for evaluating the barrier properties of packaging materials in the packaging production industry.

Test Principle The W203 2.0 Water Vapour Permeability Analyser operates on the electrolytic method. It secures a pre-treated sample in the centre of the test chamber, dividing it into high humidity and low humidity sides. Compressed air flows on one side of the film, while dry nitrogen (carrier gas) maintains a fixed flow rate on the other side. Due to the humidity gradient, water vapour permeates from the high-humidity side to the low-humidity side. The electrolytic sensor captures the water vapour passing through the sample, providing parameters such as water vapour transmittance through the electrical signal output.

Standards ISO15106-3, ASTM E398, GB/T 21529, DIN 53122-2, YBB00092003

Technical Parameters

  • Test Range: 0.001~50g/(m2·24h) (film or sheet)
  • Test Accuracy: 0.001 g/(m2·24h)
  • Temperature Range: 15~45℃
  • Temperature Accuracy: ±0.1℃
  • Humidity Range: 0%RH, 30~90%RH, 100%RH
  • Humidity Accuracy: ±2%RH
  • Test Area: 50.24 cm2
  • Sample Size: Φ100 mm
  • Sample Thickness: ≤3 mm
  • Number of Samples: 3 Pieces
  • Carrier Gas: 99.999% N2 (user-provided)
  • Carrier Pressure: ≥0.1 MPa
  • Carrier Gas Flow: 0~100 mL/min
  • Air Source Interface: 1/8″ metal pipe
  • Size: 670×550×400mm
  • Weight: 57.1kg
  • Power: 750W
  • Power Supply: AC 220 V, 50 Hz (110V is optional)


  • Patented core technology with upgraded convenient control.
  • High-sensitivity, high-precision, and stable electrolytic sensor with a long service life.
  • Over-range automatic protection to safeguard essential sensors during instrument failure.
  • New pneumatic control system for automatic fixture locking, enhancing convenience and sealing performance.
  • Precise temperature and humidity control with semiconductor refrigerators and dual airflow humidity control.
  • Three chambers for high-throughput testing with a measuring range of 0.001~50 g/(m2·24h).
  • Embedded 11.6-inch color touch screen for real-time curve visualisation and easy operation.
  • Intelligent operating system meeting GMP requirements for data traceability in the pharmaceutical industry.
  • Professional calibration service ensuring accurate and reliable data.


  • Films: Water vapour transmittance test of various plastic films, composite films, degradable packaging films, etc.
  • Sheet: Water vapour transmittance test of solid pharmaceutical hard sheets, metal composite sheets, rubber sheets, etc.
  • Paper, Cardboard: Water vapour transmittance test of coated paper, cigarette bag aluminised paper, etc.
  • Medicinal Patches: Water vapour transmission performance test.
  • Package: Customisable fixtures for pharmaceutical bottles, sealed bags, plastic trays, etc.