WPT-304 Water Vapor Permeability Tester is manufactured based on the gravimetric method and is applicable to test the water vapor transmission rate of plastic films, composite films, sheets, and other materials used in packaging, medical and constructive industry.
- Standard periodic weighing method and auto-zeroing function guarantee the accuracy and uniformity of the testing data.
- Touch interface is more convenient to operate.
- 4 specimens can be processed independently with individual result in one test automatically.
- Electric cylinder lifting structure and automatic weighing calibration mode ensure the accuracy of data.
- Innovative circulating dehumidification system can effectively prevent the formation of humidity gradient and ensure accuracy.
- High-precise and automatic control system of temperature can be used under different conditions.
- Dual test modes: water method and desiccant method.
- Adjustable air velocity enables the appropriate humidity for testing.
- The data can be stored and outputted in multi-format (including reports in excel and cloud sharing).
- GMP management of user's three-level authority complies with international standards.
- The instrument processes statistical analysis of single and group data.
- Equipped with ISP control online and upgrade function.
- Specialized communicating software can display in real-time, analyze and store data.
Under a certain test temperature, the constant difference of humidity is generated between two sides of the test specimen. The water vapor permeates through the specimen and is 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 many national and international standards:
ISO 2528, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208, GB/T 1037, GB/T 16928, YBB 00092003
Textile and Non-woven
0.1 ~ 10,000 g/m2·24h (Standard)
(Customization is available for desiccant method)
|Number of Specimen||
1 ~ 4 PCS with independent test results
(Customization ≤ 8 PCS)
|Temperature Range||10°C ~ 55°C (Standard)|
|Humidity Range||10%RH ~ 90%RH (Relative humidity)|
|Air Velocity||0.5 ~ 2.5 m/s (Customization is available)|
|Test Area||33.18 cm2|
|Sample Thickness||≤ 3 mm (Customization is available)|
|Sample Size||Φ72 mm|
|Port Size||Ф6 mmPU tubing|
|Instrument Dimension||500 mm (L) × 500 mm (W) × 550 mm (H)|
|Power Supply||AC 220V 50Hz|
|Net Weight||42 kg|
Standard Configurations: Instrument, Professional Software, Test Dishes, Desiccant Device, Automatic Moisture Filter, Communication Cable, Round Sample Cutter, Quantitative Dropper, Gloves.
Optional Parts: Reference Film, Desiccant container,air compressor, 4A molecular sieve.
Note: 1. The gas supply port of the instrument is Φ6 mm PU Tubing;
2. Customers will need to prepare for gas supply and distilled water.
Jinan Saicheng Instrument, focusing on the R&D of packaging material testing instruments, provides you with cost-effective quality control solutions. We accept customization products for customer special need.