Gas Permeability Tester

Parent Product

Film Permeability Tester - GTR / OTR / WVTR Analyzers

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Gas Permeability Tester QT-GTR series, is the most advanced and competitive product line from Qualitest, to test the Gas Transmission Rate (GTR) of packaging materials by differential pressure method. Gas permeability is the ability of a barrier material to allow gases (O₂, N₂, CO₂ etc.) to permeate through it in a specific time. Gas permeability may vary with temperature, humidity, pressure and specimen thickness.

Gas Permeability Tester Systems

Gas Permeability Tester systems help packaging, battery, and textile labs generate repeatable barrier data and keep prep workflows consistent across operators. Select the right method, cell configuration, and control features to support reliable QC release and R&D screening. Use the table below to compare the best option for your lab.

Product	Test Type / Method	Typical Materials	Pressure / Vacuum	Specimen Size / Thickness	Notes
QT-Q600E (Battery Diaphragm)	Gurley-type air permeance / differential pressure timing	Battery separators, breathable membranes, polymer materials	Pressure: 0–3 kPa (Res: 0.001 kPa)	>50×50 mm; Area: 6.45 cm²	110–250 VAC; 100 W; 450×400×300 mm
Auto Q53-1 (Analyzer)	Gas transmission / differential pressure	Films, sheets, paper, packaging	Vacuum <20 Pa; Test: 0.1 MPa; Setting: 10–210 kPa	Φ110 mm; ≤2 mm	420×564.5×690 mm; 1150 W
Auto Q50-1 (Tester)	Gas transmission / differential pressure	High/medium/low barrier materials	Vacuum <20 Pa; Test: 0.1 MPa; Setting: 10–210 kPa	Φ110 mm; ≤2 mm	400×560×305 mm; 450 W
QT-530L	Gas transmission / differential pressure	Not stated	Vacuum <20 Pa; Test: 0.1 MPa	Φ110 mm; ≤2 mm	690×620×390 mm; 750 W
QT-500L	Gas transmission / differential pressure	Films, sheets, paper, packaging, patch/products	Vacuum <20 Pa; Test: 0.1 MPa	Φ110 mm; ≤2 mm	380×585×345 mm; 450 W
QT-GTR500 (Single Cell)	Gas transmission rate / differential pressure	Film or sheet materials	Vacuum <20 Pa; Test: 0.1 MPa	Φ110 mm; ≤2 mm	Power: 450 W
QT-GTR530 (Three Cells)	Gas transmission / differential pressure	Films, sheets, papers, packages	Vacuum <10 Pa; Test: 0.1 MPa	Φ110 mm; ≤2 mm	690×620×390 mm; 750 W
QT-N900 (Textile)	Air permeability (controlled pressure differential)	Textile fabrics, nonwovens, breathable textiles	Pressure differential: 1–4000 Pa (Adjustable)	150×150 mm; ≤10 mm; Area: 5/20/50/100 cm²	640×380×865 mm; 70 kg; AC 220V/110V