Professional, High Efficiency and Intelligent WVTR Test System
This instrument is based on the cup method, and is professionally applicable to the water vapor transmission rate test of film specimens. It is equipped with high resolution sensor, whose test resolution is 0.0001g. The sensor also provides excellent test sensitivity.
W3/060 system adopts the precision design of round dish rack which is equipped with 6 test dishes and supports 6 different specimens to test individually at one operation. It can be also connected with 9 satellite bases together to accomplish up to 60 tests at the same time.
The instrument is equipped with the latest operating software, with user-friendly operating interface and intelligent data management functions. It also supports LystemTM Lab Data Sharing System, which ensures uniform management of test results and test reports.
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.
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
This instrument is applicable to the determination of water vapor transmission rate of:
Including plastic films, plastic composite films, paper-plastic composite films, geomembranes coextruded films, aluminized films, aluminum foils, aluminum foil composite films and many others
Including engineering plastics, rubber and building materials, e.g. PP, PVC and PVDC
Including paper and paper board, e.g. aluminum foil paper for cigarette packages and Tetra Pak materials
Including textiles and non-woven materials, e.g. waterproof breathable fabric, non-woven fabric for diapers and hygienic products
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 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
Including plasters, aseptic wound protecting films, face masks and scar sticks
Including solar back-sheets
Including LCD monitor films
Test water vapor permeability of various sorts of paint films
Test water vapor permeability of cosmetics
Test water vapor permeability of various sorts of biodegradable films, e.g. starch-based packaging films
|Test Range||0.1~10,000 g/m2·24h (standard)|
|Number of Specimens||1~6 with independent test results|
|Temperature Range||15°C~55°C (standard)|
|Humidity Range||90%RH~70%RHNote (standard is 90%RH)|
|Air Velocity||0.5~2.5 m/s (customization available)|
|Specimen Thickness||≤3 mm (customization is available for other thickness)|
|Test Area||33 cm2|
|Specimen Size||Φ74 mm|
|Test Chamber Size||35 L|
|Gas Supply Pressure||0.6 MPa|
|Port Size||Φ6 mm PU tubing|
|Instrument Dimension||660 mm (L) x 480 mm (W) x 525 mm (H)|
|Power Supply||220VAC 50Hz / 120VAC 60Hz|
|Net Weight||70 kg|
Note: Herein the "Humidity" means the humidity difference between the two sides of the film specimen. The humidity in the test chamber is 10%~30%RH accordingly.