W/061 Water Vaper Permeability Tester

This instrument is based on the cup method, which is professionally applicable to the water vapor transmission rate test of thin film specimens. Through the determination of water vapor transmittance to control and adjust the technical index of material, meet the different needs of application.

  1. General Details

    ♦Gas cylinder lifting structure design and periodically weighing method to reduce system errors

    ♦ Six distinct or equivalent specimens can be tested individually with independent test results at one operation.

    ♦ Standard air velocity can effectively prevent the formation of moisture gradient.

    ♦ Wide range and high-precision of automatic temperature and humidity control to support various combinations of non-standard test conditions

    ♦ Convenient fast-access calibration ports for temperature and humidity.

    ♦ The system is controlled by computer and test process is automatic.

    ♦ The tast report could be saved and provided in multiple formats,including Excel, database,etc.

    ♦Reference film or standard weight for fast and accurate calibration

    ♦ The instrument is equipped with USB port and Common data port for convenient input, output, and data transfer


  2. Principle & Standards

    This instrument conforms to various national and international standards:

    ISO 2528, GB 1037, GB/T 16928, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208, YBB 00092003

  3. Applications Specifications
    Basic Applications Films Including plastic films, plastic composite films, paper-plastic composite films, geomembranes coextruded films, aluminized films, aluminum foils, aluminum foil composite films and many others
    Sheeting Including engineering plastics, rubber and building materials, e.g. PP, PVC and PVDC
    Paper and PaperBoard Including paper and paper board, e.g. aluminum foil paper for cigarette packages and Tetra Pak materials
    Textiles and Nonwovens Including textiles and non-woven materials, e.g. waterproof breathable fabric, non-woven fabric for diapers and hygienic products
    Extended Applications Inverted Cup Method Mount film or sheeting in test dish, cover upper surface of specimen with distilled water, and make the lower side in certain humidity. Generate a constant humidity difference between two sides; water vapor permeates through specimen and measure weight changes in different time to obtain the water vapor transmission rate.
    NOTE: inverted cups are required
    Artificial Skin Artificial skin has to meet standard requirements for water vapor transmission rate to ensure better breath performance. This instrument can be used to test  water vapor permeability of artificial skin
     Medical Products and Accessories Including plasters, aseptic wound protecting films, face masks and scar sticks
    Solar Back-Sheets Including solar back-sheets
    LCD Monitor Films Including LCD monitor films
    Paint Films Test water vapor permeability of various sorts of paint films
     Cosmetics Test water vapor permeability of cosmetics
     Biodegradable Films Test water vapor permeability of various sorts of biodegradable films, e.g. starch-based packaging films
  4. Technical Specifications
    Specification Film Test
    Test Range 0.1 ~ 10,000 g/m2·24h (standard)
    Number of Specimens 1~6 with independent test results
    Accuracy 0.01 g/m2·24h
    Resolution 0.001g
    Temperature Range 15 °C~ 55 °C (standard)
    Temperature Accuracy ±0.1 °C (standard)
    Humidity Range 10%RH~ 98%RH Note (standard is 90%RH)
    Humidity Accuracy ±1%RH
    Air Velocity 0.5~ 2.5 m/s (customization available )
    Test Area 33 cm2
    Specimen Thickness ≤ 3 mm (customization is available for other thickness)
    Specimen Size Φ74 mm
    Test Chamber Size 15 L
    Gas Supply Air
    Gas Supply Pressure 0.6 MPa
    Port Size Φ6 mm PU tubing
    Instrument Dimension 695 mm (L) × 555 mm (W) × 390 mm (H)
    Power Supply AC220V 50Hz
    Net Weight 76 kg
  5. Documents
  6. Related Products
Packaging Testing Equipment