W301  Water vapor transmission rate tester 

Functions

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, box, widely used in the industries of food, pharmaceuticals, personal care, household, electronics and so on. 

Standards

ASTM E96-00e1 ,ASTM D1653-03, GB 1037-1988 ,GB/T 16928-1997, TAPPI T464,ISO2528.

 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, paper-plastic composite, glass, and metal packages, eg: bottles, containers.

Working principle

W301 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

Software interface:

Features:

1, Automatic test, use friendly,

2, Instrument with configuration of 240,000 true color touch screen to work independently;

3, High-precision sensors with over-range protection, continuous data collection, accurate and reliable data;

4, Software displays the status of each curve ,all the test parameters on the real time showing;

5. Calibration with two method of weights and standard film;

6. The desiccant should be dried per half an month.