This instrument is professionally applicable to the determination of water vapor transmission rate of plastic films, composite films, high barrier materials, back-sheets, sheeting, aluminum foils, waterproof materials, and other materials used in sanitary and medical industry. By testing the water vapor transmission rate, the technical indexes of materials could be controlled to meet the requirements for production.
Technical Specifications
| Specifications | Film Test |
|---|
| Test Range | 0.001 ~ 50 g/m2·24h (standard)
0.01 ~ 1000 g/m2·24h (optional) |
|---|
| Number of Specimens | 1 |
|---|
| Resolution | 0.1ppm |
|---|
| Temperature Range | 5°C ~ 95°C |
|---|
| Temperature Accuracy | ±0.1°C |
|---|
| Humidity Range | 0%RH, 2%RH ~ 98.5%RH, 100%RH (standard is 90%RH) |
|---|
| Accuracy | ±1%RH |
|---|
| Test Area | 38.48 cm2 |
|---|
| Thickness | < 1 mm (accessories required for thicker specimens) |
|---|
| Specimen Size | Φ100 mm |
|---|
| Carrier Gas | 99.999% High Purity Nitrogen (outside of supply scope) |
|---|
| Gas Flow | 100 mL/min |
|---|
| Gas Supply Pressure | ≥ 0.12 MPas |
|---|
| Port Size | 1/8 inch copper tubing |
|---|
| Instrument Dimension | 500 mm (L) x 400 mm (W) x 360 mm (H) |
|---|
| Power Supply | AC 220V 50Hz |
|---|
| Net Weight | 36 kg |
|---|
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 into the dry side and then is taken to the sensor, where proportional electric signals will be generated. The water vapor transmission rate and other parameters can be obtained by analyzing and calculating these electrical signals.
Standards
This test instrument conforms to the following standards:
ISO 15106-3, GB/T 21529, DIN 53122-2, YBB 00092003
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, 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 Paper Board
Including paper and paper board, e.g. aluminum foil paper for cigarette packages and Tetra Pak materials |
Packages
Including plastic, rubber, paper, paper-plastic composite, glass and metal packages, e.g. Coke bottles, Tetra Pak materials, vacuum bags, metal three-piece cans, soft tube packages for cosmetic and toothpaste, and jelly cups |
| Extended Applications | 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 |
Medical Products and Accessories
Including plasters, aseptic wound protecting films, face masks and scar sticks |
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 |
Package Caps
Test seal performance of different package caps |
Plastic Packages for Drugs and Health Care Products
Test water vapor transmission rate of plastic bottles for drug and health care products, e.g. eye drop bottles, infusion bags and health care product packages |
Blister Packs
Test water vapor transmission rate of the whole blister packs |