Product Details

WVTR ,Water vapor transmission rate tester

Function and usage

W301 Water Vapor permeation tester tests the water vapor transmission rate (WVTR) of packaging material.

This instrument is widely used in food industry, pharmaceutical industry, cosmetics flexible packaging materials industry(plastic film, barrier materials, sheets, metal aluminum, PVC,PVC sheets), college, university and quality institution for their water vapor transmission rate(WVTR) test and quality control.

It carries the standards of GB 1037-1988 ,GB/T 16928-1997, ASTM E96-00e1 ,ASTM D1653-03,TAPPI T464,ISO2528.

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.

Specifications

Measurement range	0.02~10000 g/ m2·24h
Measurement accuracy	0.001 g/ m2·24h
Temp. Range	15°C~45°C
Temp. Accuracy	±0.1°C
Humidity range	0~20%RH dry method 10~90%RH (dual-airflow humidity method, selection)
Humidity accuracy	±2%RH
Sample thickness	≤2mm
Sample no	1piece
Sample dia.	Φ80mm, transmission area 50.24cm2, (no stipulate for area in international)
Power supply	AC220V/50Hz