Water Vapour Permeability Analyser (cup method) W812 - WVTR testing equipment for packaging - Hylec Controls

Water Vapour Permeability Analyser (cup method) W812 - WVTR testing equipment for packaging

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Introducing the AUTO W812 Water Vapour Permeability Analyser (cup method), a cutting-edge solution crafted in accordance with ASTM E96 and GB/T 1037 standards. Engineered for high efficiency, it offers a broad spectrum of water vapor transmission rate detection, catering to low, medium, and high water vapor barrier materials in various applications such as food, medicine, medical equipment, and daily chemicals.

Test Principle: Employing the cup method, the AUTO W812 allows either desiccant (weight gain method) or water (weight loss method) to be placed in the sample cup. The sealed sample cup is then placed in the test box, where temperature, humidity, and wind speed are meticulously controlled. The resulting difference in humidity drives water vapor penetration through the sample, with regular weighing of the sample cup facilitating the calculation of performance parameters like water vapor transmission.

Standards: Compliance with ASTM E96, GB/T 1037, GB/T 16928, GB/T 17146, GB/T 12704, GB/T 19082, GB/T 21332, ASTM D1653, ISO 2528, TAPPIT464, DIN 53122-1, YBB00092003 ensures reliability and accuracy in testing.

Technical Parameters:

  • Test Range:
    • Film: 0.05~10,000 g/(m²·24h)
    • Container: 0.0002~30 g/(pkg·24h)
  • Test Precision:
    • Film: 0.001 g/(m²·24h)
    • Container: 0.0002 g/(pkg·24h)
  • Test Stations: 12 Pieces
  • Balance Range: 210 g
  • Balance Indexing: 0.01 mg
  • Temperature Range: 10~50±0.1 ℃
  • Humidity Range: 5%~95%,100% RH
  • Sample Size: Φ74 mm
  • Sample Thickness: ≤3 mm
  • Test Method: Weight gain method, weight loss method
  • Standard Test Area: 33 cm²
  • Carrier Gas Specification: Air compressor
  • Air Pressure: ≥0.6 MPa
  • Connection Size: Φ6 mm Polyurethane tube


  • Upgraded test chamber and breathable cup design with a fully automatic rotating tray.
  • 12 test stations supporting weight gain and weight loss modes.
  • Precise temperature, humidity, and wind speed control with dual airflow.
  • Fault self-check and professional safety protection.
  • Artistic and ergonomic design with a 3D printed shell, ensuring a fashionable appearance.
  • Fully automatic operation with real-time visualisation of curves, including transmittance-time, temperature-time, humidity-time, and weight-time.
  • Intelligent operating system developed in-house, complying with GMP requirements.
  • Professional calibration service for accurate and reliable data.

Lab Intelligent IoT Platform:

  • Connectivity to the IoT platform for network digital management.
  • Remote authorisation for managing experimental data, remote diagnosis, and troubleshooting.
  • Downloadable instrument information, documents, and operation videos on the platform.

Application Areas:

  • Film: Testing various plastic films, composite films, and degradable packaging films.
  • Sheet: Ideal for solid pharmaceutical hard sheets, metal composite sheets, and rubber sheets.
  • Paper, Cardboard and Composite Material: Suitable for testing paper, cardboard, and composite materials.
  • Medicinal Patch: Tailored for water vapour permeability tests of medical plasters.
  • Package: Customisable clamps for extended testing to various packaging parts.

Factory Configuration:

  • Standard configuration includes a power cord, communication line, weighing pan, moisture permeable cup, sample cutter, sealing grease, mouse, weight, 4A molecular sieve, standard membrane, and inner hexagon.
  • Optional components like a measurement certificate and air compressor are available.


  1. Ensure a vibration-free and level test bench with no nearby vibration sources.
  2. Operate in a standard laboratory environment at a temperature of 23°±2.
  3. Power requirements: 220 V regulated power supply, one socket with three holes and three switches.
  4. Computer requirements: Standard configuration with Windows 10 and a nine-pin serial port.
  5. Use a muffle furnace or drying equipment with a temperature exceeding 500℃ for drying the desiccant.
  6. Drying dish is required for dehydrating and degassing all samples for 24 hours.
  7. First-grade distilled water (2 L bottled) is recommended.

Technical parameters


Technical parameters

Test range

film:0.05~10,000 g/(m2·24h) Container:0.0002~30 g/(pkg·24 h)

Test precision

film:0.001 g/(m2·24h),Container:0.0002 g/(pkg·24 h)

Test station

12 Pieces

Balance range

210 g

Balance indexing

0.01 mg

Temperature range

10~50±0.1 ℃

Humidity range

5%~95%,100% RH

air speed

0.5~2.5 m/s(0.03~0.5 m/s optional)

Sample size

Φ74 mm

Sample thickness

≤3 mm

Test method

weight gain method, weight loss method

Standard test area

33 cm2

Carrier gas specification

Air compressor

Air pressure

≥0.6 MPa

Connection size

Φ6 mm Polyurethane tube