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Labthink Instruments Co., Ltd.
VAC-V2 Gas Permeability Tester

VAC-V2 Gas Permeability Tester

Product catalog summary

Overview: The VAC-V2 Gas Permeability Tester by Labthink Instruments Co., Ltd. is designed to measure the gas transmission rate, solubility coefficient, diffusion coefficient, and permeability coefficient of various materials such as plastic films, composite films, and aluminum foils using the differential pressure method.

Professional Technology: The instrument allows for the testing of three distinct specimens simultaneously, offers precise temperature and humidity control, and supports both proportional and standard test modes. It can be customized to test poisonous, inflammable, and explosive gases and is controlled via computer for automated testing. Data can be transferred through an RS232 port and managed using the Lystem™ Lab Data Sharing System.

Test Principle: The specimen is placed in a gas diffusion cell, creating a sealed barrier between two chambers. A pressure difference is established, and gas permeability is determined by monitoring pressure changes in the lower chamber.

Standards Compliance: The instrument complies with ISO 15105-1, ISO 2556, GB/T 1038-2000, ASTM D1434, JIS K7126-1, and YBB 00082003 standards.

Applications: The VAC-V2 is applicable for testing gas permeability in films, sheeting, various gases, biodegradable films, aerospace materials, paper, paint films, glass fiber cloth, and rubber sheeting.

Technical Specifications: The instrument has a test range of 0.05 to 50,000 cm³/m²·24h·0.1MPa, with extended capabilities up to 500,000 cm³/m²·24h·0.1MPa. It supports a temperature range of 5°C to 95°C with an accuracy of ±0.1°C and humidity control from 0%RH to 100%RH with an accuracy of ±1%RH. The specimen size is Φ97 mm, and the test area is 38.48 cm².

Configurations: The standard configuration includes the mainframe, temperature control device, software, sample cutter, vacuum grease, filter paper, and vacuum pump. Optional parts include additional blades, vacuum grease, pump oil, filter paper, and a humidity generator.

Note: The gas supply port requires Φ6 mm PU Tubing, and customers must provide gas supply and distilled water. Specifications are subject to change, and the latest updates can be found on the company's website.

Catalog excerpts

PERME® VAC-V2 Gas Permeability Tester VAC-V2 is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheeting, and aluminum foils. Professional Technology Gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of the specimen could be obtained at one operation 3 distinct or equivalent specimens could be tested individually with independent test results at one operation Wide range and high precision temperature and humidity control to meet various test conditions The instrument comes with two test modes: proportional mode and standard mode Test range could be extended based on user requirements to test the materials with high permeability Test results could be easily obtained even at extreme conditions by data fitting function, which could fit any temperature The instrument could be used to test poisonous, inflammable, and explosive gases (customization required) The instrument is controlled by computer and test process is automatic Reference film for fast calibration to ensure accurate and universal test data Standard RS232 port for convenient data transfer Support 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 Films Basic Applications composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, and many others Including engineering plastics, rubber, and building materials, e.g. PP, PVC, and PVDC 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

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Various Gases Inflammable, Explosive Gases Biodegradable Films Materials for Aerospace Usage Extended Applications Paper and Paper Board Paint Films Glass Fiber Cloth and Paper Soft Tube Materials for Cosmetics Rubber Sheeting Test the permeability of various types of gases, e.g. O 2, 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 Test gas permeability of paper and paper-plastic composite materials,...

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Standard Configurations Optional Parts Note Mainframe, Constant Temperature Control Device, Professional Software, Round Sample Cutter, Vacuum Grease, Fast Quantitative Filter Paper, and Vacuum Pump (Imported) Blades for Sample Cutter, Vacuum Grease, Vacuum Pump Oil, Fast Quantitative Filter Paper, and Humidity Generator 1. The gas supply port of the instrument is Φ6 mm PU Tubing; 2. Customers will need to prepare for gas supply and distilled water. Please Note: Labthink is always dedicated to the innovation and improvement of product performance and function. Therefore, technical specifications...

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