Catalogs >
Labthink Instruments Co., Ltd. >
VAC-VBS Gas Permeability Tester

VAC-VBS Gas Permeability Tester
2Pages

Catalog excerpts

PERME® VAC-VBS Gas Permeability Tester VAC-VBS is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate of films, sheeting, high barrier materials and aluminum foils. Professional Technology The GTRs of various films for distinct gases are testable Tests 3 equivalent specimens at one operation and exports test results in average value Equipped with temperature control device(optional parts) to meet various test conditions The instrument comes with two test modes: proportional mode and standard mode The system is controlled by computer and test process is automatic Reference film for fast calibration to ensure accurate and universal test data Equipped with RS232 port for convenient data transfer Supports Lystem™ Lab Data Sharing System for uniform management of test results and test reports Test Principle The pre-conditioned specimen is mounted in the gas diffusion cell as to form a sealed barrier between two chambers. The lower-pressure chamber is firstly evacuated, followed by the evacuation of the entire cell. A flow of gas is thereafter introduced into the evacuated higher-pressure chamber and a constant pressure difference is generated between two chambers. The gas permeates through the specimen from the higher pressure side into the lower side. The gas permeability and other barrier properties of the specimen can be obtained by monitoring the pressure changes in the lower chamber. This test instrument conforms to the following standards: ISO 15105-1, ISO 2556, GB/T 1038-2000, ASTM D1434, JIS K7126-1, YBB 00082003 Applications This test instrument is applicable to the determination of gas permeability of: Including plastic films, plastic composite films, paper-plastic Basic Applications aluminum foil composite films and many others Sheeting Various Gases Extended Applications composite films, coextruded films, aluminized films, aluminum foils, Inflammable, Explosive Gases Biodegradable Films Materials for Including engineering plastics, rubber, and building materials, e.g. PP, PVC and PVDC Test the permeability of various types of gases, e.g. O2, CO2, N2, Air and He Test the permeability of inflammable and explosive gases Test gas permeability of various sorts of biodegradable films, e.g. starch-based biodegradable bags This instrument can test the Helium permeability of airship gas bags Labthink Instruments Co., Ltd.144 Wuyingshan Road, Jinan, P.R.China (250031) Phone: +86 -531-85068566 FAX: +86-531-85812140 w w w.labthinkinter n atio n al.co m.cn

Open the catalog to page 1

Aerospace Usage Paper and Paper Board Test gas permeability of paper and paper-plastic composite materials, e.g. aluminized paper for cigarette packages, Tetra Pak sheeting, paper bowls for instant noodles and disposable paper cups Paint Films Glass Fiber Cloth and Paper Soft Tube Materials for Cosmetics Rubber Sheeting Test gas permeability of substrates coated paint films Including glass fiber cloth and paper materials, e.g. Teflon paint cloth, Teflon welding cloth and Teflon Silicon Rubber Cloth Including various types of cosmetic tubes, aluminum-plastic tubes and toothpaste tubes...

Open the catalog to page 2