Water Vapor Permeability Tester(WVTR)

By wooden case for Water Vapor Permeability

W303 Water Vapor Permeability (WVTR)

To test the water vapor transmission rate (WVTR) of packaging materials, such as plastic film, composite film, coextrusion film, aluminum-plated film, aluminum foil, infusion bag, sheets, paper, paper board, solar battery panel, cellophane, ceramics and porcelain, and various containers such as bag, pouch, bottle, can, bowl, and box. It is widely used in the industries of food, pharmaceuticals, personal care, household, electronics and so on and institutions of quality control, drug inspection and science research. 

Water Vapor Permeability

Standards:

GB/T 1037,GB/T 16928,YBB00092003,ASTM E96,ASTM D1653,ISO 2528,TAPPI T464,DIN 53122-1,JIS Z0208

Application :

* Films
Rigid films, shrik films, stretch films, plastic films, plastic composite films, paper-plastic composite films,aluminized films, aluminum foil, aluminum composite films, high barrier films and many others. Eg. PET, OPP, CPP, LDPE, BOPP

* Sheet
Engineering plastics, rubber, waterproof building materials, and thermal insulation materials, e.g. PP, PVC, PVDC, and nylon

*Packages
Paper, plastics, rubber,paper-plastic composite, glass, and metal packages, eg: bottles, containers

Working principle:

W303 Water Vapor Permeation Tester was designed with the principle of weighting method to use weight reduction method to test the water transmittance rate (WVTR) of plastic films. Namely in the regulated temperature, relative humidity conditions, the sample two sides keep the vapor different pressure, measuring the vapor volume passed through, figure out the WVTR value. Unit is g/ m²·24h.

Techinical Parameter:

Features:

Precise & Reliable 

• High precision sensor, continuous data collecting, accurate and dependable. 
• Test accuracy reaches 0.001 g / (m2·24h), which stays in leading position of the industry. 
• Adopt the only Standard Films in the industry which are authorized by AQSIQ and developed by GBPI to verify the instrument, and the data are 100% reliable. 
• The discreteness of data for the same sample is less than 5%.

Multi-testing Chambers to test samples flexibly and Efficiently