 differential pressure method gas permeation instrumentslabthink has a complete series of gas permeation instruments based on differential pressure method &ndash vacv1, vac2, vac3, vacvbs, g2131 & g2132. given different requirements on testing efficiency, labthink gas permeation instruments are designed in various numbers 1, 3 and 6 and structure design of testing cells. vac series multiple testing cells are fixed in line on the instruments, while g2 series instruments adopts labthink&rsquos latest exclusive patent design of three diffusion cells integrated in one instrument for individual or multiple tests. these instruments have high test accuracy 0.01m3m2&bull24h&bull0.1mpa, which is more precise than the same instruments in the world 0.5 m3m2&bull24h&bull0.1mpa.dangerous gases permeation testthis technology precisely controls the closure of pipes, purity of gases, temperature and humidity of testing environment using unique safety device. after thousands of tests, it is proved its safety and stable in processing. this technology fills in the gap of dangerous gases permeability test in the world. the test can be done using vac gas permeability testers containers gas permeation test using differential pressure methodlabthink is the first to use difference pressure method to do gas permeation test for containers. there is no related standard for this technology currently, so it is very important for future container permeation test. it adopts labthink patient test method and structure design and perfectly solved the deformation and pressure issues of container while pumping vacuum to make sure the accuracy of test results.organic gases permeation testthis technology is based on the combination of differential pressure method and chromatography analysis technology, can be used for benzene, ester, alcohols, aldehydes, ketones and other organic gases permeation test. or2411 organic gas permeability analyzer adopts this technology with test range 0.0140 gm2&bulld and temperature range. it is the only instrument in the market so far that provides the quantitative and qualitative analysis of organic gas permeability of various films and sheeting materials. testing results at extreme conditionpermeability of materials will have a significant change at extreme condition, such as freezing, extremely high temperature. however, it is much harder to test material permeability at this kind extreme condition due to high cost, low efficiency, inconvenience and etc. labthink develops data curve fitting in permeation dcfp based on fick laws, henry laws, and other theories to obtain gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of specimen at any temperature
