Gas pressure tester VAC-V1 (EX)

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VAC-V1 (EX) Gas Permeability Tester is a differential-pressure based instrument designed to determine gas transmission rates and related permeability properties of common gases as well as toxic, flammable or explosive gases for films, composite films, high-barrier materials, sheeting and foils across varied temperatures.

Product Features

• The tester uses Labthink's split control design with complete separation between the mainframe and control module to ensure testing safety.
• Suitable for gas permeability tests of flammable, explosive or toxic gases.
• Simultaneous determination of gas transmission rate, permeability coefficient, solubility coefficient and diffusion coefficient.
• Wide-range, high-precision liquid circulation temperature controller supports tests under different conditions.
• Dual test process judgement modes available: Proportional Mode and Fuzzy Mode.
• Test range can be extended to satisfy high-permeability material requirements.
• Data fitting at arbitrary temperatures; test results for extreme conditions can be obtained.
• PC-controlled automatic testing process.
• Reference film available for rapid calibration to ensure accuracy and versatility of test data.
• Equipped with RS232 universal data port for convenient data transfer.
• Compatible with Lystem™ Lab Data Sharing System for unified management of test results and reports.

Principle
VAC-V1 (EX) is based on the differential-pressure method: a pre-conditioned sample is clamped between an upper (higher pressure) and a lower (lower pressure) chamber; after evacuating the lower chamber and system, a test gas at a set pressure is introduced to the higher chamber, creating a constant pressure difference. Gas permeates through the sample into the low-pressure chamber and permeability properties are determined by monitoring pressure changes in the lower chamber.

Standards

• Conforms to: ISO 15105-1, ISO 2556, GB/T 1038-2000, ASTM D1434, JIS K7126-1 and YBB 00082003.

Applications

• Films
• Includes plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum-foil composite films, etc.
• Sheeting
• Includes engineering plastics, rubber, building-material sheeting (e.g. PP, PVC, PVDC sheeting).
• Various Gases
• O2, CO2, N2, CH4, H2, Air, He and other gases (test gas supply outside scope of delivery).
• Inflammable, Explosive and Poisonous Gases
• Applicable to permeability testing of inflammable, explosive and toxic gases.
• Biodegradable Films
• Gas permeability tests for biodegradable films (e.g. starch-based bags).
• Materials for Aerospace Usage
• Helium permeability testing for airship gas bags.
• Paper and Paper Board
• Paper and paper-plastic composite materials (e.g. aluminized paper for cigarette packages, Tetra Pak sheeting, paper bowls, disposable paper cups).
• Paint Films
• Permeability testing of substrates coated with paint films.
• Glass Fiber Cloth and Paper
• Including glass fiber cloth and paper materials (e.g. Teflon paint cloth, Teflon welding cloth, Teflon silicon rubber cloth).
• Soft Tube Materials for Cosmetics
• Cosmetic tubes, aluminum-plastic tubes, toothpaste tubes.
• Rubber Sheeting
• Various rubber sheeting (e.g. car tires).

Configurations / Options

• Standard Configurations: Mainframe, Thermostatic Controller, PC, Professional Software, Professional Sampler, Vacuum Grease, Fast Quantitative Filter Paper, Vacuum Pump.
• Optional Parts: Sampling Blades, Vacuum Grease, Vacuum Pump Oil, Fast Quantitative Filter Paper.
• Note: The gas source port is a Φ6 mm PU tube. Gas sources and distilled water must be prepared by the user.

Caractéristiques / Spécifications techniques

• Test Range: 0.05 ~ 50,000 cm3/m2·24h·0.1 MPa (common); upper limit ≥ 500,000 cm3/m2·24h·0.1 MPa (extended volume).
• Number of Specimens: 1.
• Vacuum Resolution: 0.1 Pa.
• Vacuum Degree of Test Chamber: < 10 Pa.
• Temperature: 5 ℃ ~ 95 ℃.
• Temperature Accuracy: ±0.1 ℃.
• Specimen Size: Φ97 mm.
• Test Area: 38.48 cm2 (Φ70 mm).
• Test Gas: H2, O2, N2, CO2 (gas supply outside delivery scope).
• Test Pressure: 10 kPa ~ 200 kPa (common).
• Gas Supply Pressure: 0.5 MPa ~ 0.6 MPa.
• Port Size: Φ6 mm PU tubing.
• Instrument Dimension (L×W×H): 500 mm × 575 mm × 450 mm.
• Power Supply: 220 VAC 50 Hz.
• Net Weight: 50 kg.