Water Vapor Transmission Rate Tester W3/0120

Water Vapor Transmission Rate Tester W3/0120

Water Transmission Rate Tester  W3 / 0120  berdasarkan metode cup, dan secara profesional berlaku untuk uji laju transmisi uap air film plastik, film komposit, lembaran dan bahan lain yang digunakan dalam industri medis dan lainnya. Dengan menguji laju transmisi uap air, indeks teknis material dapat dikontrol untuk memenuhi persyaratan produksi.

Product Features

  • Standard periodically weighing method and automatic reset before weighing ensures accurate weighing data
  • 12 distinct or equivalent specimens can be tested individually with independent test results at one operation
  • Standard air velocity enables constant humidity difference between two sides of test dishes
  • Wide range and high-precision of automatic temperature and humidity control to support various combinations of non-standard test conditions
  • Equipped with fast access testing ports for temperature and humidity which is convenient to the user
  • Universal RS232 communication port is convenient to the data export and transmission
  • Reference film or standard weight for fast and accurate calibration
  • Supports LystemTM Lab Data Sharing System for uniform and systematic data management

Principle

Under a certain test temperature, a constant humidity difference is generated between two sides of the test specimen. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish in different time, water vapor transmission rate and other parameters can be obtained.

Standards

This test instrument conforms to the following standards:
ISO 2528, GB 1037, GB/T 16928, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208, YBB 00092003

Applications

This instrument is applicable to the determination of water vapor transmission rate of:

Basic Applications
  • Films
    Including plastic films, plastic composite films, paper-plastic composite films, geomembranes, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, breathable water-proof films and many other film materials
  • Sheeting
    Including engineering plastics, rubber, building materials and many others, e.g. PP, PVC and PVDC
  • Paper and Paper Board
    Including paper and paper board
  • 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

Technical Specifications

Specifications Film Test
Test Range 0.1~10,000 g/m2·24h (standard)
Number of Specimen 1~12 (with independent test results)
Test Accuracy 0.01 g/m2·24h
Resolution 0.0001 g
Temperature Range 15°C~65°C (standard)
Temperature Accuracy ±0.1°C(standard)
Humidity Range 40%RH~95%RH (standard is 90%RH)
Humidity Accuracy ±1%RH
Air Velocity 0.5~2.5 m/s (customization is available)
Test Area 33 cm2
Specimen Thickness ≤ 3 mm (customization is available for other thickness)
Specimen Size Φ74 mm
Volume of Test Chamber 80 L
Gas Supply Air
Gas Supply Pressure 0.6 MPa
Port Size Φ6 mm PU Tubing
Instrument Dimension 826 mm (L) x 726 mm (W) x 702 mm (H)
Power Supply 220VAC 50Hz / 120VAC 60Hz
Net Weight 114 kg

Configurations

Standard Configurations
Instrument, Professional Software, Test Dishes, Desiccant Tube, Automatic Moisture Filter, Standard Weight, Round Sample Cutter and Communication Cable
Optional Parts
Reference Film, Air compressor and Desiccant
Note
Customers will need to prepare for gas supply and distilled water.