W301 water vapor permeation tester

Key Attributes.

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?~45? Temp. accuracy:±0.1? 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.:F80mm, transmission area 50.24cm2, (no stipulate for area in international) Power supply: AC220V/50Hz