Gas Permeability Tester - (bty-b2p)

Characteristics
computer control;
gas transmission rate
meet special transmission rate unit output demands;
2 testing modes of proportional and non-proportional;
average value of 3chambesr only;
100%rh(relative humidity) settable for testing gas;
flexible testing functions for special material testing demands;
rapid calibration with reference films;
rs232 interface;
network transmission interface for lan data management and internet data transmission.
Principle
maintain a certain pressure difference between the two sides of the specimen under a certain temperature and humidity. Obtaining the gas transmission rate and other parameters by testing pressure changes in the lower pressure side.
Technical indexes
test range: 1～10,000cm3m2·24h·0.1mpa
resolution: 0.01pa
temperature: 0℃～50℃ (standard: 23℃)
specimen size: φ86mm
transmission area: 38.48cm2
no. Of specimens: 1, 2 or 3 pcs
testing gas: o2, n2, co2 and other dry 99.9% gas (users provide gas sources themselves)
pressure of gas source: 0.4mpa～0.6mpa
inlet size: φ4mm polyurethane pipe
power: ac 220v 50hz
dimensions: 645 mm (l)×500 mm (b)×468 mm (h)
net weight: 60kg
standards
astm d 1434, gb 1038